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1.	Alantie, Sonja, et al. (författare) Is Old Age Just a Number in Language Skills? : Language Performance and Its Relation to Age, Education, Gender, Cognitive Screening, and Dentition in Very Old Finnish Speakers 2022 Ingår i: Journal of Speech, Language and Hearing Research. - : American Speech-Language-Hearing Association. - 1092-4388 .- 1558-9102. ; 65:1, s. 274-291 Tidskriftsartikel (refereegranskat)abstract Purpose:This study reports on how very old (VO) Finnish people without dementia perform in the Western Aphasia Battery (WAB) and two verbal fluency tasks and which demographic factors predict the performance.Method:The study included fifty 80- to 100-year-old community-dwelling Finnish speakers with no dementing illnesses or speech-language disabilities, who completed the WAB and two verbal fluency tasks. Multifactorial statistical analyses with recursive partitioning were carried out to determine the significant predictors out of five predictor variables (age, gender, education, dentition, and Mini-Mental State Examination [MMSE]) for four response variables (WAB Aphasia Quotient [AQ], Language Quotient [LQ], semantic, and phonemic word fluencies).Results:Overall, individual variation was notable in VO speakers. All predictor variables were statistically significantly associated with one or more of the language skills. Age was the most significant predictor; the critical age of 85–86 years was associated with a decline in WAB-AQ and semantic fluency. Poor dentition and the MMSE score both predicted a decline in WAB-LQ and phonemic fluency. A high level of education was positively associated with the skills of the best-performing individuals in WAB-AQ, WAB-LQ, and semantic fluency.Conclusions:VO age is a significant factor contributing to language performance. However, a younger age, a good cognitive performance, intact teeth, and a higher educational level also seem to have a preservative power as regards language skills. Gender differences should be interpreted with caution. The results of this study provide culture- and language-specific normative data, which aids in differentiating typical aging from the signs of acute or degenerative neuropathology to ensure appropriate medical and therapeutic interventions.
2.	Aliakbaryhosseinabadi, Susan, et al. (författare) The Effects of Noise and Simulated Conductive Hearing Loss on Physiological Response Measures During Interactive Conversations 2023 Ingår i: Journal of Speech, Language and Hearing Research. - : AMER SPEECH-LANGUAGE-HEARING ASSOC. - 1092-4388 .- 1558-9102. ; 66:10, s. 4009-4024 Tidskriftsartikel (refereegranskat)abstract Purpose: The purpose of this work was to study the effects of background noise and hearing attenuation associated with earplugs on three physiological measures, assumed to be markers of effort investment and arousal, during interactive communication. Method: Twelve pairs of older people (average age of 63.2 years) with ageadjusted normal hearing took part in a face-to-face communication to solve a Diapix task. Communication was held in different levels of babble noise (0, 60, and 70 dBA) and with two levels of hearing attenuation (0 and 25 dB) in quiet. The physiological measures obtained included pupil size, heart rate variability, and skin conductance. In addition, subjective ratings of perceived communication success, frustration, and effort were obtained. Results: Ratings of perceived success, frustration, and effort confirmed that communication was more difficult in noise and with approximately 25-dB hearing attenuation and suggested that the implemented levels of noise and hearing attenuation resulted in comparable communication difficulties. Background noise at 70 dBA and hearing attenuation both led to an initial increase in pupil size (associated with effort), but only the effect of the background noise was sustained throughout the conversation. The 25-dB hearing attenuation led to a significant decrease of the high-frequency power of heart rate variability and a significant increase of skin conductance level, measured as the average z value of the electrodermal activity amplitude. Conclusion: This study demonstrated that several physiological measures appear to be viable indicators of changing communication conditions, with pupillometry and cardiovascular as well as electrodermal measures potentially being markers of communication difficulty.
3.	Ballard, Kirrie J., et al. (författare) Developmental Trajectory for Production of Prosody : Lexical Stress Contrastivity in Children Ages 3 to 7 Years and in Adults 2012 Ingår i: Journal of Speech, Language and Hearing Research. - : American Speech-Language-Hearing Association. - 1092-4388 .- 1558-9102. ; 55:6, s. 1822-1835 Tidskriftsartikel (refereegranskat)abstract Purpose: Accurate production of lexical stress within English polysyllabic words is critical for intelligibility and is affected in many speech-language disorders. However, models of speech production remain underspecified with regard to lexical stress. In this study, the authors report a large-scale acoustic investigation of lexical stress production in typically developing Australian English-speaking children ages 3-7 years (n = 73) compared with young adults (n = 24).Method: Participants named pictures of highly familiar strong-weak and weak-strong polysyllabic words. Of 388 productions, 325 met criteria for acoustic measurement. Relative vowel duration, peak intensity, and peak f(0) over the first two syllables were measured.Result: Lexical stress was marked consistently by duration and intensity but not f(0). Lexical stress on strong-weak words was adultlike by 3 years. All 3 measures showed significant differences between adults and children for weak-strong words still present at 7 years.Conclusion: Our findings suggest that protracted development of weak-strong stress production reflects physiological constraints on producing short articulatory durations and rising intensity contours. Findings validate treatment that is centered on strong-weak stress production for children >= 3 years with dysprosody. Although intervention for the production of weak-strong words may be initiated before age 7 years, reference to normative acoustic data is preferable to relying on perceptual judgments of accuracy.
4.	Beechey, Timothy, et al. (författare) Eliciting Naturalistic Conversations: A Method for Assessing Communication Ability, Subjective Experience, and the Impacts of Noise and Hearing Impairment 2019 Ingår i: Journal of Speech, Language and Hearing Research. - : American Speech Language Hearing Association. - 1092-4388 .- 1558-9102. ; 62:2, s. 470-484 Tidskriftsartikel (refereegranskat)abstract Purpose: The purpose of this study was to introduce a method of eliciting conversational behavior with many aspects of realism, which may be used to study the impacts of hearing impairment and noise on verbal communication; to describe the characteristics of speech and language participants produced during the task; and to assess participants' engagement and motivation while completing the task.Method: Twenty young adults with normal hearing and 20 older adults with hearing impairment took part in face-to-face conversations while completing a referential communication puzzle task designed to elicit natural conversational speech production and language with a number of realistic characteristics. Participants rated the difficulty and relevance of acoustic scenes for communication and their engagement in conversations.Results: The communication task elicited speech production in a natural conversational register and language with many realistic characteristics, including complex linguistic constructions and typical disfluencies found in everyday speech, and approximately balanced contributions within dyads. Subjective ratings suggest that the task is robust to learning and fatigue effects and that participants remained highly engaged throughout the experiment. All participants were able to maintain successful communication regardless of background noise level and degree of hearing impairment.Conclusions: The communication task described here may be used as part of a functional assessment of the ability to communicate in the presence of noise and hearing impairment. Although existing speech assessments have many strengths, they do not take into account the inherently interactive nature of spoken communication or the effects of motivation and engagement.
5.	Beechey, Timothy, et al. (författare) Hearing Aid Amplification Reduces Communication Effort of People With Hearing Impairment and Their Conversation Partners 2020 Ingår i: Journal of Speech, Language and Hearing Research. - : American Speech-Language-Hearing Association. - 1092-4388 .- 1558-9102. ; 63:4, s. 1299-1311 Tidskriftsartikel (refereegranskat)abstract ObjectivesThis study investigates the hypothesis that hearing aid amplification reduces effort within conversation for both hearing aid wearers and their communication partners. Levels of effort, in the form of speech production modifications, required to maintain successful spoken communication in a range of acoustic environments are compared to earlier reported results measured in unaided conversation conditions.DesignFifteen young adult normal-hearing participants and 15 older adult hearing-impaired participants were tested in pairs. Each pair consisted of one young normal-hearing participant and one older hearing-impaired participant. Hearing-impaired participants received directional hearing aid amplification, according to their audiogram, via a master hearing aid with gain provided according to the NAL-NL2 fitting formula. Pairs of participants were required to take part in naturalistic conversations through the use of a referential communication task. Each pair took part in five conversations, each of 5-min duration. During each conversation, participants were exposed to one of five different realistic acoustic environments presented through highly open headphones. The ordering of acoustic environments across experimental blocks was pseudorandomized. Resulting recordings of conversational speech were analyzed to determine the magnitude of speech modifications, in terms of vocal level and spectrum, produced by normal-hearing talkers as a function of both acoustic environment and the degree of high-frequency average hearing impairment of their conversation partner.ResultsThe magnitude of spectral modifications of speech produced by normal-hearing talkers during conversations with aided hearing-impaired interlocutors was smaller than the speech modifications observed during conversations between the same pairs of participants in the absence of hearing aid amplification.ConclusionsThe provision of hearing aid amplification reduces the effort required to maintain communication in adverse conditions. This reduction in effort provides benefit to hearing-impaired individuals and also to the conversation partners of hearing-impaired individuals. By considering the impact of amplification on both sides of dyadic conversations, this approach contributes to an increased understanding of the likely impact of hearing impairment on everyday communication.
6.	Beechey, Timothy, et al. (författare) Hearing Impairment Increases Communication Effort During Conversations in Noise 2020 Ingår i: Journal of Speech, Language and Hearing Research. - : American Speech-Language-Hearing Association. - 1092-4388 .- 1558-9102. ; 63:1, s. 305-320 Tidskriftsartikel (refereegranskat)abstract PurposeThis article describes patterns of speech modifications produced by talkers as a function of the degree of hearing impairment of communication partners during naturalistic conversations in noise. An explanation of observed speech modifications is proposed in terms of a generalization of the concept of effort. This account complements existing theories of listening effort by extending the concept of effort to the domain of interactive communication.MethodTwenty young adult normal hearing participants and 20 older adult hearing-impaired participants were tested in pairs. Each pair consisted of 1 young normal hearing participant and 1 older hearing-impaired participant. Pairs of participants took part in naturalistic conversations through the use of a referential communication task. Each pair completed a 5-min conversation in each of 5 different realistic acoustic environments.ResultsTalkers modified their speech, in terms of level and spectrum, in a gradient manner reflecting both the acoustic environment and the degree of hearing impairment of their conversation partner. All pairs of participants were able to maintain communication across all acoustic environments regardless of degree of hearing impairment and the level of environmental noise. Contrasting effects of noise and hearing impairment on speech production revealed distinct patterns of speech modifications produced by normal hearing and hearing-impaired talkers during conversation. This may reflect the fact that only the speech modifications produced by normal hearing talkers functioned to compensate for the hearing impairment of a conversation partner.ConclusionsThe data presented support the concept of communication effort as a dynamic feedback system between conversation participants. Additionally, these results provide insight into the nature of realistic speech signals, which are encountered by people with hearing impairment in everyday communication scenarios.
7.	Berglund, E, et al. (författare) Parental reports of spoken language skills in children with Down syndrome. 2001 Ingår i: Journal of Speech, Language and Hearing Research. - 1092-4388 .- 1558-9102. ; 44:1, s. 179-191 Tidskriftsartikel (refereegranskat)abstract Spoken language in children with Down syndrome and in children in a normative group was compared. Growth trends, individual variation, sex differences, and performance on vocabulary, pragmatic, and grammar scales as well as MaxLU (maximum length of utterance) were explored. Subjects were 330 children with Down syndrome (age range: 1-5 years) and 336 children in a normative group (1;4-2; 4 years;months). The Swedish Early Communicative Development inventory-words and sentences (SECDI-w&s) was employed. Performance of children with Down syndrome at ages 3;0 and 4;0 was comparable with that of children in the normative group at ages 1,4 and 1;8 respectively. In comparison with children in the normative group of similar vocabulary size, children with Down syndrome lagged slightly on pragmatic and grammar scales. The early development proceeded in most cases with exponential or logistic growth. This stresses the great potential of early intervention.
8.	Besser, Jana, et al. (författare) New measures of masked text recognition in relation to speech-in-noise perception and their associations with age and cognitive abilities 2012 Ingår i: Journal of Speech, Language and Hearing Research. - : American Speech Language Hearing Association. - 1092-4388 .- 1558-9102. ; 55:1, s. 194-209 Tidskriftsartikel (refereegranskat)abstract Purpose: This research aimed to increase the analogy between text reception threshold (TRT) and speech reception threshold (SRT) and to examine the TRT's value in estimating cognitive abilities important for speech comprehension in noise. Method: We administered five TRT versions, SRT tests in stationary (SRTSTAT) and modulated (SRTMOD) noise, and two cognitive tests: a reading span (RSpan) test for working memory capacity, and a letter-digit-substitution test for information processing speed. Fifty-five normal hearing adults (18–78 years, mean = 44) participated. We examined mutual associations of the tests and their predictive value for the SRTs with correlation and linear regression analyses. Results: SRTs and TRTs were well associated, also when controlling for age. Correlations for the SRTSTAT were generally lower than for the SRTMOD. The cognitive tests were only correlated to the SRTs when age was not controlled for. Age and the TRTs were the only significant predictors of SRTMOD. SRTSTATwas predicted by level of education and some of the TRT versions. Conclusions: TRTs and SRTs are robustly associated, nearly independent of age. The association between SRTs and RSpan is largely age-dependent. The TRT test and the RSpan test measure different non-auditory components of linguistic processing relevant for speech perception in noise.
9.	Bolzer, Adrien, et al. (författare) The Development of the “Telislife” Questionnaire for the Evaluation of Telephone Use in Cochlear Implant Users 2021 Ingår i: Journal of Speech, Language and Hearing Research. - : American Speech - Language - Hearing Association. - 1092-4388 .- 1558-9102. ; 64:1, s. 186-195 Tidskriftsartikel (refereegranskat)abstract Purpose For cochlear implant users, the ability to use the telephone is often seen as an important landmark during rehabilitation and an indicator of cochlear implant benefit. The goal of this study was to develop a short questionnaire exploring the ability to use the telephone in cochlear implant users, named Telislife, and test it in a group of experienced users.Method This prospective multicenter study was based on the completion of self-administrated questionnaires. The Telislife includes 20 items using a 5-point Likert scale for answers. Speech recognition scores were obtained with monosyllabic word lists at 70 dB HL. Quality of life was evaluated with the Nijmegen Cochlear Implant Questionnaire. This study included 55 adult patients wearing a cochlear implant for over 1 year.Results The Telislife questionnaire showed excellent reliability (Cronbach's α = .91). A significant correlation was found between Telislife scores and Nijmegen Cochlear Implant Questionnaire scores (r = .69, p < .001) and speech recognition scores (r = .35, p = .007).Conclusion Given significant correlations between Telislife scores and both speech recognition and quality of life and given its short form, the Telislife questionnaire appears to be a reliable tool to evaluate cochlear implant outcomes in clinical practice.
10.	Carlie, Johanna, et al. (författare) Development of an Auditory Passage Comprehension Task for Swedish Primary School Children of Cultural and Linguistic Diversity 2021 Ingår i: Journal of Speech, Language, and Hearing Research. - : American Speech-Language-Hearing Association. - 1558-9102 .- 1092-4388. ; 64:10 Tidskriftsartikel (refereegranskat)abstract Purpose This study reports on the development of an auditory passage comprehension task for Swedish primary school children of cultural and linguistic diversity. It also reports on their performance on the task in quiet and in noise. Method Eighty-eight children aged 7-9 years and showing normal hearing participated. The children were divided into three groups based on presumed language exposure: 13 children were categorized as Swedish-speaking monolinguals, 19 children were categorized as simultaneous bilinguals, and 56 children were categorized as sequential bilinguals. No significant difference in working memory capacity was seen between the three language groups. Two passages and associated multiple-choice questions were developed. During development of the passage comprehension task, steps were taken to reduce the impact of culture-specific prior experience and knowledge on performance. This was achieved by using the story grammar principles, universal topics and plots, and simple language that avoided complex or unusual grammatical structures and words. Results The findings indicate no significant difference between the two passages and similar response distributions. Passage comprehension performance was significantly better in quiet than in noise, regardless of language exposure group. The monolinguals outperformed both simultaneous and sequential bilinguals in both listening conditions. Conclusions Because the task was designed to minimize the effect of cultural knowledge on auditory passage comprehension, this suggests that compared with monolinguals, both simultaneous and sequential bilinguals have a disadvantage in auditory passage comprehension. As expected, the findings demonstrate that noise has a negative effect on auditory passage comprehension. The magnitude of this effect does not relate to language exposure. The developed auditory passage comprehension task seems suitable for assessing auditory passage comprehension in primary school children of linguistic and cultural diversity.
11.	Carlie, Johanna, et al. (författare) The Effect of Background Noise, Bilingualism, Socioeconomic Status, and Cognitive Functioning on Primary School Children's Narrative Listening Comprehension Ingår i: Journal of Speech, Language, and Hearing Research. - 1558-9102. ; , s. 1-14 Tidskriftsartikel (refereegranskat)abstract PURPOSE: This study focuses on 7- to 9-year-old children attending primary school in Swedish areas of low socioeconomic status, where most children's school language is their second language. The aim was to better understand what factors influence these children's narrative listening comprehension both in an ideal listening condition (in quiet) and for the primary school classroom, a typical listening condition (with multitalker babble noise).METHOD: A total of 86 typically developing 7- to 9-year-olds performed a narrative listening comprehension test (Lyssna, Förstå och Minnas [LFM]; English translation: Listen, Comprehend, and Remember) in two listening conditions: quiet and multitalker babble noise. They also performed the crosslinguistic nonword repetition test and a digit span backwards (DSB) test. A predictive statistical model including these factors, the children's degree of school language exposure, parental education level, and age was derived.RESULTS: Listening condition had the strongest predictive value for LFM performance, followed by school language exposure and nonword repetition accuracy. Parental education level was also a significant predictor. There was a significant three-way interaction effect between listening condition, age, and DSB performance.CONCLUSIONS: Multitalker babble noise has a negative effect on children's narrative listening comprehension. The effect of multitalker babble noise could be explained by age differences in the ability to allocate working memory capacity during the narrative listening comprehension task, suggesting that younger children may be more vulnerable for missing information when listening in background noise than their older peers.SUPPLEMENTAL MATERIAL: https://doi.org/10.23641/asha.25209248.
12.	Case, J, et al. (författare) The Relationship Between Speech Accuracy and Linguistic Measures in Narrative Retells of Children With Speech Sound Disorders 2023 Ingår i: Journal of speech, language, and hearing research : JSLHR. - 1558-9102. ; , s. 1-19 Tidskriftsartikel (refereegranskat)
13.	Christensen, Rikke Vang, et al. (författare) The Use and Productivity of Past Tense Morphology in Specific Language Impairment: An Examination of Danish 2012 Ingår i: Journal of Speech, Language, and Hearing Research. - : American Speech Language Hearing Association. - 1558-9102 .- 1092-4388. ; 55:6, s. 1671-1689 Tidskriftsartikel (refereegranskat)abstract Purpose: The authors' primary goal was to investigate the potential of past tense inflection as a clinical marker of Danish specific language impairment (SLI). They also wished to test the predictions of the extended optional infinitive (EOI) account and processing based accounts of SLI on Danish. Method: Using sentence completion and sentence repetition tasks, the authors investigated the use of past tense by 3 groups (n = 11 in each group): (a) children with SLI whose ages ranged from 5; 2 (years; months) to 7; 11; (b) children with typical language development matched on chronological age; and (c) children with typical language development matched on vocabulary. Results: Participants with SLI were less likely to produce past tense than were both typically developing control groups. In particular, only the children with SLI had difficulties with accurately producing past tense verbs during the sentence repetition task. Past tense accuracy was associated with children's productive vocabulary levels and proficiency with a nonword repetition task. Conclusion: Past tense use is potentially a clinical marker of Danish SLI, but more research is needed to confirm this. Results provided mixed support for competing accounts of SLI.
14.	Clark, Grace T., et al. (författare) Word Learning With Orthographic Support in Nonspeaking and Minimally Speaking School-Age Autistic Children 2023 Ingår i: Journal of Speech, Language and Hearing Research. - : AMER SPEECH-LANGUAGE-HEARING ASSOC. - 1092-4388 .- 1558-9102. ; 66:6, s. 2047-2063 Tidskriftsartikel (refereegranskat)abstract Purpose: Previous research has demonstrated that typically developing children, verbal children with a diagnosis of autism, children with Down syndrome, children with developmental language disorder, and children with dyslexia can all benefit from orthographic support during word learning tasks. This study sought to determine if minimally speaking or nonspeaking children with a diagnosis of autism would also demonstrate an orthographic facilitation effect during a computer-based remote word learning task. Method: Twenty-two school-age children with a diagnosis of autism and little to no spoken language learned four novel words by contrasting the words with known objects. Two novel words were taught with orthographic support present, and two were taught without orthographic support. Participants were exposed to the words a total of 12 times and then given an immediate posttest to assess identification. Parent report measures of receptive vocabulary, expressive vocabulary, autism symptomatology, and reading skills were also collected. Results: During learning tasks, participants performed equally well whether orthographic support was given or not. For the posttest, however, participants performed significantly better for words that were taught with orthographic support. The presence of orthography improved accuracy and supported a greater number of participants to reach the passing criterion compared to the absence of orthography. Orthographic representations aided the word learning of those with lower expressive language significantly more than those with higher expressive language. Conclusions: Minimally speaking or nonspeaking children with a diagnosis of autism benefit from orthographic support when learning new words. Further investigation is warranted to determine if this effect holds during face-to-face interactions using augmentative and alternative communication systems.
15.	Elmazoska, Iris, et al. (författare) Associations Between Recreational Noise Exposure and Hearing Function in Adolescents and Young Adults : A Systematic Review 2024 Ingår i: Journal of Speech, Language and Hearing Research. - : American Speech-Language-Hearing Association. - 1092-4388 .- 1558-9102. ; 67:2, s. 688-710 Forskningsöversikt (refereegranskat)abstract PURPOSE: There is an increasing concern regarding hazardous recreational noise exposure among adolescents and young adults. Daily exposure to loud sound levels over a long period of time can increase the risk of noise-induced hearing loss. The full extent of the impact of recreational noise on hearing is not yet fully understood. The purpose of this review was to synthesize research that investigated hearing function in relation to recreational noise exposure in adolescents and young adults.METHOD: A systematic literature search of five databases covering the years 2000-2023 was performed. The articles included investigated audiological measurements of hearing function in relation to recreational noise exposure.RESULTS: Four hundred sixty records were identified, of which 20 met the inclusion criteria and were included in the results. This review showed that although some recreational noise activities can be potentially harmful, there is an unclear relationship between exposure and outcome. Some findings indicated hearing threshold shifts or reduced otoacoustic emission amplitudes after recreational noise exposure, but most changes were short term and in the extended high-frequency range.CONCLUSIONS: There seemed to be inconsistencies regarding the utilization of methods of measuring exposure and outcome between studies. This might be one reason for the differing results in studies on the reported impact on hearing function from recreational noise exposure. To draw more certain conclusions about long-term effects, there is a need for longitudinal research that utilizes sound level measurements to assess low and high degrees of recreational noise exposure in relation to hearing function.SUPPLEMENTAL MATERIAL: https://doi.org/10.23641/asha.25114193.
16.	Enflo, Laura, et al. (författare) Effects on Vocal Fold Collision and Phonation Threshold Pressure of Resonance Tube Phonation With Tube End in Water 2013 Ingår i: Journal of Speech, Language and Hearing Research. - : American Speech Language Hearing Association. - 1092-4388 .- 1558-9102. ; 56:5, s. 1530-1538 Tidskriftsartikel (refereegranskat)abstract Purpose: Resonance tube phonation in water (RTPW) or in air is a voice therapy method successfully used for treatment of several voice pathologies. Its effect on the voice has not been thoroughly studied. This investigation analyzes the effects of RTPW on collision and phonation threshold pressures (CTP and PTP), the lowest subglottal pressure needed for vocal fold collision and phonation, respectively. Method: Twelve mezzo-sopranos phonated into a glass tube, the end of which was placed under the water surface in a jar. Subglottal pressure, electroglottography, and audio signals were recorded before and after exercise. Also, the perceptual effects were assessed in a listening test with an expert panel, who also rated the subjects' singing experience. Results: Resonance tube phonation significantly increased CTP and also tended to improve perceived voice quality. The latter effect was mostly greater in singers who did not practice singing daily. In addition, a more pronounced perceptual effect was found in singers rated as being less experienced. Conclusion: Resonance tube phonation significantly raised CTP and tended to improve perceptual ratings of voice quality. The effect on PTP did not reach significance.
17.	Engelen, Marscha M., et al. (författare) The Association Between Stuttering Burden and Psychosocial Aspects of Life in Adults 2024 Ingår i: Journal of Speech, Language and Hearing Research. - 1092-4388 .- 1558-9102. ; 67:5, s. 1385-1399 Tidskriftsartikel (refereegranskat)abstract PURPOSE: Stuttering is a speech condition that can have a major impact on a person's quality of life. This descriptive study aimed to identify subgroups of people who stutter (PWS) based on stuttering burden and to investigate differences between these subgroups on psychosocial aspects of life.METHOD: The study included 618 adult participants who stutter. They completed a detailed survey examining stuttering symptomatology, impact of stuttering on anxiety, education and employment, experience of stuttering, and levels of depression, anxiety, and stress. A two-step cluster analytic procedure was performed to identify subgroups of PWS, based on self-report of stuttering frequency, severity, affect, and anxiety, four measures that together inform about stuttering burden.RESULTS: We identified a high- (n = 230) and a low-burden subgroup (n = 372). The high-burden subgroup reported a significantly higher impact of stuttering on education and employment, and higher levels of general depression, anxiety, stress, and overall impact of stuttering. These participants also reported that they trialed more different stuttering therapies than those with lower burden.CONCLUSIONS: Our results emphasize the need to be attentive to the diverse experiences and needs of PWS, rather than treating them as a homogeneous group. Our findings also stress the importance of personalized therapeutic strategies for individuals with stuttering, considering all aspects that could influence their stuttering burden. People with high-burden stuttering might, for example, have a higher need for psychological therapy to reduce stuttering-related anxiety. People with less emotional reactions but severe speech distortions may also have a moderate to high burden, but they may have a higher need for speech techniques to communicate with more ease. Future research should give more insights into the therapeutic needs of people highly burdened by their stuttering.SUPPLEMENTAL MATERIAL: https://doi.org/10.23641/asha.25582980.
18.	Eriksson, Mårten, et al. (författare) A screening version of the Swedish Communicative Development Inventories designed for use with 18-month-old children. 2002 Ingår i: Journal of Speech, Language and Hearing Research. - : American Speech Language Hearing Association. - 1092-4388 .- 1558-9102. ; 46:5, s. 948-960 Tidskriftsartikel (refereegranskat)abstract An instrument designed to assess young children's communicative skills at 18 months is described. The instrument consists of a 103-item parental report checklist based on the Swedish version of the Communicative Development Inventories (SECDI). We present descriptive data from a study at the Swedish Community Health Care Centres, including parental reports of 1021 18-month-old children. The response rate was 88%. Performance at the 10th percentile consisted of 8 communicative gestures, 45 comprehended words, and 7 spoken words. The overall results indicate that the instrument is reliable and has validity approximating that of the SECDI. Furthermore, parents of the children with the poorest vocabulary indicated approval of the assessment procedure in interviews especially directed to this group.
19.	Francis, Alexander L., et al. (författare) Effects of Second Language Proficiency and Linguistic Uncertainty on Recognition of Speech in Native and Nonnative Competing Speech 2018 Ingår i: Journal of Speech, Language and Hearing Research. - : American Speech-Language-Hearing Association. - 1092-4388 .- 1558-9102. ; 61:7, s. 1815-1830 Tidskriftsartikel (refereegranskat)abstract Purpose The purpose of this study was to investigate the effects of 2nd language proficiency and linguistic uncertainty on performance and listening effort in mixed language contexts.Method Thirteen native speakers of Dutch with varying degrees of fluency in English listened to and repeated sentences produced in both Dutch and English and presented in the presence of single-talker competing speech in both Dutch and English. Target and masker language combinations were presented in both blocked and mixed (unpredictable) conditions. In the blocked condition, in each block of trials the target–masker language combination remained constant, and the listeners were informed of both prior to beginning the block. In the mixed condition, target and masker language varied randomly from trial to trial. All listeners participated in all conditions. Performance was assessed in terms of speech reception thresholds, whereas listening effort was quantified in terms of pupil dilation.Results Performance (speech reception thresholds) and listening effort (pupil dilation) were both affected by 2nd language proficiency (English test score) and target and masker language: Performance was better in blocked as compared to mixed conditions, with Dutch as compared to English targets, and with English as compared to Dutch maskers. English proficiency was correlated with listening performance. Listeners also exhibited greater peak pupil dilation in mixed as compared to blocked conditions for trials with Dutch maskers, whereas pupil dilation during preparation for speaking was higher for English targets as compared to Dutch ones in almost all conditions.Conclusions Both listener's proficiency in a 2nd language and uncertainty about the target language on a given trial play a significant role in how bilingual listeners attend to speech in the presence of competing speech in different languages, but precise effects also depend on which language is serving as target and which as masker.
20.	Gustafsson, Joakim Körner, et al. (författare) Voice use in daily life studied with a portable voice accumulator in individuals with Parkinson’s disease and matched healthy controls 2019 Ingår i: Journal of Speech, Language and Hearing Research. - 1092-4388 .- 1558-9102. ; 62:12, s. 4324-4334 Tidskriftsartikel (refereegranskat)abstract Purpose: The purpose of this work was to study how voice use in daily life is impacted by Parkinson’s disease (PD), specifically if there is a difference in voice sound level and phonation ratio during everyday activities for individuals with PD and matched healthy controls. A further aim was to study how variations in environmental noise impact voice use. Method: Long-term registration of voice use during 1 week in daily life was performed for 21 participants with PD (11 male, 10 female) and 21 matched healthy controls using the portable voice accumulator VoxLog. Voice use was assessed through registrations of spontaneous speech in different ranges of environmental noise in daily life and in a controlled studio recording setting. Results: Individuals with PD use their voice 50%-60% less than their matched healthy controls in daily life. The difference increases in high levels of environmental noise. Individuals with PD used an average voice sound level in daily life that was 8.11 dB (female) and 6.7 dB (male) lower than their matched healthy controls. Difference in mean voice sound level for individuals with PD and controls during spontaneous speech during a controlled studio registration was 3.0 dB for the female group and 4.1 dB for the male group. Conclusions: The observed difference in voice use in daily life between individuals with PD and matched healthy controls is a 1st step to objectively quantify the impact of PD on communicative participation. The variations in voice use in different levels of environmental noise and when comparing controlled and variable environments support the idea that the study of voice use should include methods to assess function in less controlled situations outside the clinical setting.
21.	Hallin, Anna Eva, et al. (författare) Error Type and Lexical Frequency Effects: Error Detection in Swedish Children With Language Impairment 2017 Ingår i: Journal of Speech, Language and Hearing Research. - : AMER SPEECH-LANGUAGE-HEARING ASSOC. - 1092-4388 .- 1558-9102. ; 60:10, s. 2924-2934 Tidskriftsartikel (refereegranskat)abstract Purpose: The first aim of this study was to investigate if Swedish-speaking school-age children with language impairment (LI) show specific morphosyntactic vulnerabilities in error detection. The second aim was to investigate the effects of lexical frequency on error detection, an overlooked aspect of previous error detection studies. Method: Error sensitivity for grammatical structures vulnerable in Swedish-speaking preschool children with LI (omission of the indefinite article in a noun phrase with a neuter/common noun, and use of the infinitive instead of past-tense regular and irregular verbs) was compared to a control error (singular noun instead of plural). Target structures involved a high-frequency (HF) or a low-frequency (LF) noun/verb. Grammatical and ungrammatical sentences were presented in headphones, and responses were collected through button presses. Results: Children with LI had similar sensitivity to the plural control error as peers with typical language development, but lower sensitivity to past-tense errors and noun phrase errors. All children showed lexical frequency effects for errors involving verbs (HF > LF), and noun gender effects for noun phrase errors (common > neuter). Conclusions: School-age children with LI may have subtle difficulties with morphosyntactic processing that mirror expressive difficulties in preschool children with LI. Lexical frequency may affect morphosyntactic processing, which has clinical implications for assessment of grammatical knowledge.
22.	Hansson, Kristina, et al. (författare) Specific language impairment in Swedish: The status of verb morphology and word order 2000 Ingår i: Journal of Speech, Language, and Hearing Research. - 1558-9102. ; 43:4, s. 848-864 Tidskriftsartikel (refereegranskat)
23.	Haukedal, Christiane Lingas, et al. (författare) Parents Perception of Health-Related Quality of Life in Children With Cochlear Implants: The Impact of Language Skills and Hearing 2018 Ingår i: Journal of Speech, Language and Hearing Research. - : AMER SPEECH-LANGUAGE-HEARING ASSOC. - 1092-4388 .- 1558-9102. ; 61:8 Tidskriftsartikel (refereegranskat)abstract Purpose: The study compared how parents of children with cochlear implants (CIs) and parents of children with normal hearing perceive their childrens health-related quality of life (HR-QOL). Method: The sample consisted of 186 Norwegian-speaking children in the age span of 5; 0-12; 11 (years; months): 106 children with CIs (53% boys, 47% girls) and 80 children with normal hearing (44% boys, 56% girls). No children had known additional disabilities affecting language, cognitive development, or HR-QOL. Parents completed the generic questionnaire Pediatric Quality of Life Inventory (Varni, Seid, amp; Kurtin, 2001), whereas children completed a test battery measuring different aspects of language and hearing. Results: Parents of children with CIs reported statistically significantly poorer HR-QOL in their children, on Pediatric Quality of Life Inventory total score and the subdomains social functioning and school functioning. Roughly 50% of parents of children with CIs reported HR-QOL levels (total score) within normal limits. No significant differences between groups emerged on the physical health and emotional functioning subscales. For the children in the group with CIs, better speech perception in everyday situations was associated with higher proxy-ratings of HR-QOL. Better spoken language skills were weakly to moderately associated with higher HR-QOL. Conclusions: The findings suggest that the social and school situation is not yet resolved satisfactorily for children with CIs. Habilitation focusing on spoken language skills and better sound environment may improve social interactions with peers and overall school functioning.
24.	Hengen, Johanna, et al. (författare) Perceived Voice Quality and Voice-Related Problems Among Older Adults With Hearing Impairments 2018 Ingår i: Journal of Speech, Language and Hearing Research. - : AMER SPEECH-LANGUAGE-HEARING ASSOC. - 1092-4388 .- 1558-9102. ; 61:9, s. 2168-2178 Tidskriftsartikel (refereegranskat)abstract The auditory system helps regulate phonation. A speakers perception of their own voice is likely to be of both emotional and functional significance. Although many investigations have observed deviating voice qualities in individuals who are prelingually deaf or profoundly hearing impaired, less is known regarding how older adults with acquired hearing impairments perceive their own voice and potential voice problems. Purpose: The purpose of this study was to investigate problems relating to phonation and self-perceived voice sound quality in older adults based on hearing ability and the use of hearing aids. Method: This was a cross-sectional study, with 290 participants divided into 3 groups (matched by age and gender): (a) individuals with hearing impairments who did not use hearing aids (n = 110), (b) individuals with hearing impairments who did use hearing aids (n = 110), and (c) individuals with no hearing impairments (n = 70). All participants underwent a pure-tone audiometry exam; completed standardized questionnaires regarding their hearing, voice, and general health; and were recorded speaking in a soundproof room. Results: The hearing aid users surpassed the benchmarks for having a voice disorder on the Voice Handicap Index (VHI; Jacobson et al., 1997) at almost double the rate predicted by the Swedish normative values for their age range, although there was no significant difference in acoustical measures between any of the groups. Both groups with hearing impairments scored significantly higher on the VHI than the control group, indicating more impairment. It remains inconclusive how much hearing loss versus hearing aids separately contribute to the difference in voice problems. The total scores on the Hearing Handicap Inventory for the Elderly (Ventry amp; Weinstein, 1982), in combination with the variables gender and age, explained 21.9% of the variance on the VHI. Perceiving ones own voice as being distorted, dull, or hollow had a strong negative association with a general satisfaction about the sound quality of ones own voice. In addition, groupwise differences in own-voice descriptions suggest that a negative perception of ones voice could be influenced by alterations caused by hearing aid processing. Conclusions: The results indicate that hearing impairments and hearing aids affect several aspects of vocal satisfaction in older adults. A greater understanding of how hearing impairments and hearing aids relate to voice problems may contribute to better voice and hearing care.
25.	Hjortdal, Anna, et al. (författare) Swift Prosodic Modulation of Lexical Access : Brain Potentials From Three North Germanic Language Varieties 2024 Ingår i: Journal of Speech, Language, and Hearing Research. - 1558-9102. ; 67:2, s. 400-414 Tidskriftsartikel (refereegranskat)abstract Purpose: According to most models of spoken word recognition, listeners probabilistically activate a set of lexical candidates, which is incrementally updated as the speech signal unfolds. Speech carries segmental (speech sound) as well as suprasegmental (prosodic) information. The role of the latter in spoken word recognition is less clear. We investigated how suprasegments (tone and voice quality) in three North Germanic language varieties affected lexi-cal access by scrutinizing temporally fine-grained neurophysiological effects of lexical uncertainty and information gain. Method: Three event-related potential (ERP) studies were reanalyzed. In all vari-eties investigated, suprasegments are associated with specific word endings. Swedish has two lexical “word accents” realized as pitch falls with different tim-ings across dialects. In Danish, the distinction is in voice quality. We combined pronunciation lexica and frequency lists to calculate estimates of lexical uncer-tainty about an unfolding word and information gain upon hearing a supraseg-mental cue and the segment upon which it manifests. We used single-trial mixed-effects regression models run every 4 ms. Results: Only lexical uncertainty showed solid results: a frontal effect at 150–400 ms after suprasegmental cue onset and a later posterior effect after 200 ms. While a model including only segmental information mostly performed better, it was outperformed by the suprasegmental model at 200–330 ms at frontal sites. Conclusions: The study points to suprasegmental cues contributing to lexical access over and beyond segments after around 200 ms in the North Germanic varieties investigated. Furthermore, the findings indicate that a previously reported “pre-activation negativity” predominantly reflects forward-looking processing.
26.	Holmberg, Jenny, et al. (författare) Exploring motives and perceived barriers for voice modification : the views of transgender and gender-diverse voice clients 2023 Ingår i: Journal of Speech, Language and Hearing Research. - : American Speech Language Hearing Association. - 1092-4388 .- 1558-9102. ; 66:7, s. 2246-2259 Tidskriftsartikel (refereegranskat)abstract Purpose: To date, transgender and gender-diverse voice clients' perceptions and individual goals have been missing in discussions and research on gender-affirming voice therapy. Little is, therefore, known about the client's expectations of therapy outcomes and how these are met by treatments developed from views of vocal gender as perceived by cisgender persons. This study aimed to explore clients' individual motives and perceived barriers to undertaking gender-affirming voice therapy.Method: Individual, semistructured interviews with 15 transgender and gender-diverse voice clients considering voice therapy were conducted and explored using qualitative content analysis.Results: Three themes were identified during the analysis of the participants' narratives. In the first theme, “the incongruent voice setting the rules,” the contribution of the voice on the experienced gender dysphoria is put in focus. The second theme, “to reach a voice of my own choice,” centers around anticipated personal gains using a modified voice. The third theme, “a voice out of reach,” relates to worries and restricting factors for not being able to reach one's set goals for voice modification.Conclusions: The interviews clearly indicate a need for a person-centered voice therapy that starts from the individuals' expressed motives for modifying the voice yet also are affirmative of anticipated difficulties related to voice modification. We recommend that these themes should form the basis of the pretherapy joint discussion between the voice client and the speech-language pathologist to ensure therapy goals that are realistic and relevant to the client.
27.	Holmberg, J, et al. (författare) Exploring Motives and Perceived Barriers for Voice Modification: The Views of Transgender and Gender-Diverse Voice Clients 2023 Ingår i: Journal of speech, language, and hearing research : JSLHR. - 1558-9102. ; 66:7, s. 2246-2259 Tidskriftsartikel (refereegranskat)
28.	Håkan, Hua, 1986-, et al. (författare) Speech Recognition and Cognitive Skills in Bimodal Cochlear Implant Users 2017 Ingår i: Journal of Speech, Language and Hearing Research. - : American Speech-Language-Hearing Association. - 1092-4388 .- 1558-9102. ; 60:9, s. 2752-2763 Tidskriftsartikel (refereegranskat)abstract Purpose: To examine the relation between speech recognition and cognitive skills in bimodal cochlear implant (CI) and hearing aid users.Method: Seventeen bimodal CI users (28-74 years) were recruited to the study. Speech recognition tests were carried out in quiet and in noise. The cognitive tests employed included the Reading Span Test and the Trail Making Test (Daneman & Carpenter, 1980; Reitan, 1958, 1992), measuring working memory capacity and processing speed and executive functioning, respectively. Data were analyzed using paired-sample t tests, Pearson correlations, and partial correlations controlling for age.Results: The results indicate that performance on some cognitive tests predicts speech recognition and that bimodal listening generates a significant improvement in speech in quiet compared to unilateral CI listening. However, the current results also suggest that bimodal listening requires different cognitive skills than does unimodal CI listening. This is likely to relate to the relative difficulty of having to integrate 2 different signals and then map the integrated signal to representations stored in the long-term memory.Conclusions: Even though participants obtained speech recognition benefit from bimodal listening, the results suggest that processing bimodal stimuli involves different cognitive skills than does unimodal conditions in quiet. Thus, clinically, it is important to consider this when assessing treatment outcomes.
29.	Iob, Naomi Anna, et al. (författare) Effects of Speech Characteristics on Electroglottographic and Instrumental Acoustic Voice Analysis Metrics in Women With Structural Dysphonia Before and After Treatment 2024 Ingår i: Journal of Speech, Language and Hearing Research. - : American Speech Language Hearing Association. - 1092-4388 .- 1558-9102. ; , s. 1-22 Tidskriftsartikel (refereegranskat)abstract Purpose: Literature suggests a dependency of the acoustic metrics, smoothed cepstral peak prominence (CPPS) and harmonics-to-noise ratio (HNR), on human voice loudness and fundamental frequency (fo). Even though this has been explained with different oscillatory patterns of the vocal folds, so far, it has not been specifically investigated. In the present work, the influence of three elicitation levels, calibrated sound pressure level (SPL), fo and vowel on the electroglottographic (EGG) and time-differentiated EGG (dEGG) metrics hybrid open quotient (OQ), dEGG OQ and peak dEGG, as well as on the acous-tic metrics CPPS and HNR, was examined, and their suitability for voice assess-ment was evaluated. Method: In a retrospective study, 29 women with a mean age of 25 years (± 8.9, range: 18–53) diagnosed with structural vocal fold pathologies were examined before and after voice therapy or phonosurgery. Both acoustic and EGG signals were recorded simultaneously during the phonation of the sustained vowels /ɑ/, /i/, and /u/ at three elicited levels of loudness (soft/comfortable/loud) and unconstrained fo conditions. Results: A linear mixed-model analysis showed a significant effect of elicitation effort levels on peak dEGG, HNR, and CPPS (all p < .01). Calibrated SPL significantly influenced HNR and CPPS (both p < .01). Furthermore, F0had asignificant effect on peak dEGG and CPPS (p < .0001). All metrics showed significant changes with regard to vowel (all p < .05). However, the treatment had no effect on the examined metrics, regardless of the treatment type (surgery vs. voice therapy). Conclusions: The value of the investigated metrics for voice assessment purposes when sampled without sufficient control of SPL and fo is limited, in that they are significantly influenced by the phonatory context, be it speech or elicited sustained vowels. Future studies should explore the diagnostic value of new data collation approaches such as voice mapping, which take SPL and fo effects into account.
30.	Jamsen, S. H., et al. (författare) Associations Between Vocal Symptoms and Genetic Variants in the Oxytocin Receptor and Arginine Vasopressin 1A Receptor Gene 2017 Ingår i: Journal of Speech Language and Hearing Research. - : American Speech Language Hearing Association. - 1092-4388 .- 1558-9102. ; 60:7, s. 1843-1854 Tidskriftsartikel (refereegranskat)abstract Purpose: Oxytocin and arginine vasopressin are associated with different aspects of the stress response. As stress is regarded as a risk factor for vocal symptoms, we wanted to explore the association between the oxytocin receptor gene (OXTR) and arginine vasopressin 1A receptor gene (AVPR1A) single-nucleotide polymorphisms (SNPs) and vocal symptoms. We also wanted to explore whether such effects might be mediated by cortisol because oxytocin and vasopressin are associated with cortisol levels. Method: A population-based sample (N = 657) of Finnish twins (born 1961-1989) completed a web questionnaire on the occurrence of vocal symptoms. A total of 170 participants submitted saliva samples for hormone analysis. A total of 20 OXTR and AVPR1A SNPs were analyzed. Results: Three OXTR polymorphisms (rs2270465, rs2268493, rs7632287) and 2 AVPR1A polymorphisms (rs1587097, rs1042615) showed nominal effects (p <.05) on vocal symptoms, of which 1 (rs1587097) remained significant after correcting for multiple testing (p =.003). We found potential mediation of the effect of the OXTR rs2268493 polymorphism on vocal symptoms through levels of cortisol. Conclusions: The associations between variants of OXTR and AVPR1A and vocal symptoms indicate that oxytocin and vasopressin might influence vocal symptoms. The effect of oxytocin seems to be partly mediated through cortisol actions.
31.	Karlsson, Fredrik, 1975-, et al. (författare) Articulatory closure proficiency in Parkinson's disease patients following deep brain stimulation of the subthalamic nucleus and caudal zona incerta. 2014 Ingår i: Journal of Speech, Language and Hearing Research. - 1092-4388 .- 1558-9102. ; 57, s. 1178-1190 Tidskriftsartikel (refereegranskat)abstract OBJECTIVEThe present study aimed at comparing the effects of deep brain stimulation (DBS) treatment of the subthalamic nucleus (STN) and the caudal zona incerta (cZi) on Parkinson's disease patients' proficiency in achieving oral closure and release during plosive production. METHODS Nineteen patients were evaluated preoperatively and 12 months after DBS surgery. Nine patients were implanted in the STN, seven bilaterally and two unilaterally (left). Ten were bilaterally implanted in the cZi. Postoperative examinations were made off and on stimulation. All patients received simultaneous L-dopa treatment in all conditions. For a series of plosives extracted from a reading passage, absolute and relative measures of duration of frication and amplitude of plosive release were compared between conditions within each treatment group. RESULTS Relative duration of frication increased in voiceless plosives in the on stimulation condition in cZi patients. Similar trends were observed across the data set. Duration of pre-release frication and the release peak prominence increased in voiceless plosives on stimulation for both groups. CONCLUSIONS The increased release prominence suggests that patients achieved a stronger closure gesture due to DBS, but that the increased energy available resulted in increased frication.
32.	Karlsson, Fredrik, 1975-, et al. (författare) Pitch variability in patients with Parkinson’s disease : effects of deep brain stimulation of caudal zona incerta and subthalamic nucleus 2013 Ingår i: Journal of Speech, Language and Hearing Research. - : American Speech-Language-Hearing Association. - 1092-4388 .- 1558-9102. ; 56:1, s. 150-158 Tidskriftsartikel (refereegranskat)abstract Objective The purpose of the present study was to examine the effect of deep brain stimulation (DBS) of the subthalamic nucleus (STN) and the caudal zona incerta (cZi) pitch characteristics of con- nected speech in patients with Parkinson’s disease (PD).Methods Sixteen patients were evaluated preoperatively and 12 months after DBS surgery. Eight pa- tients were implanted in the STN (aged 51-72 yrs; xC=63 yrs). Six received bilateral implanta- tion and two unilateral (left) implantation. Eight patients were bilaterally implanted in the cZi (aged 49-71 yrs; xC=60.8 yrs). Preoperative assessments were made after an L-Dopa challenge (approximately 1.5 times the ordinary dose). All postoperative examinations were made off and on stimulation, with a clinically optimized dose of L-dopa. Measurements of pitch range and var- iability were obtained from each utterance in a recorded read speech passage.Results Pitch range and coefficient of variation showed an increase in patients under STN-DBS. Patients under cZi-DBS showed no significant effects of treatment on investigated pitch properties.Conclusions STN-DBS was shown to increase pitch variation and range. The results provided no evidence of cZi-DBS having a beneficial effect on PD patients’ pitch variability.
33.	Klem, M., et al. (författare) Screening for language delay: Growth trajectories of language ability in low- and high-performing children 2016 Ingår i: Journal of Speech, Language and Hearing Research. - 1092-4388 .- 1558-9102. ; 59:5, s. 1035-1045 Tidskriftsartikel (refereegranskat)abstract Purpose: This study investigated the stability and growth of preschool language skills and explores latent class analysis as an approach for identifying children at risk of language impairment. Method: The authors present data from a large-scale 2-year longitudinal study, in which 600 children were assessed with a language-screening tool (LANGUAGE4) at age 4 years. Asubsample(n = 206) was assessed on measures of sentence repetition, vocabulary, and grammatical knowledge at ages 4, 5, and 6 years. Results: A global latent language factor showed a high degree of longitudinal stability in children between the ages of 4 to 6 years. A low-performing group showing a language deficit compared to their age peers at age 4 was identified on the basis of the LANGUAGE4. The growth-rates during this 2-year time period were parallel for the low-performing and 3 higher performing groups of children. Conclusions: There is strong stability in children’s language skills between the ages of 4 and 6 years. The results demonstrate that a simple language screening measure can successfully identify a low-performing group of children who show persistent language weaknesses between the ages of 4 and 6 years. © 2016 American Speech-Language-Hearing Association.
34.	La, Filipa M. B., et al. (författare) Effects of the Menstrual Cycle and Oral Contraception on Singers' Pitch Control 2012 Ingår i: Journal of Speech, Language and Hearing Research. - : American Speech Language Hearing Association. - 1092-4388 .- 1558-9102. ; 55:1, s. 247-261 Tidskriftsartikel (refereegranskat)abstract Purpose: Difficulties with intonation and vibrato control during the menstrual cycle have been reported by singers; however, this phenomenon has not yet been systematically investigated. Method: A double-blind randomized placebo-controlled trial assessing effects of the menstrual cycle and use of a combined oral contraceptive pill (OCP) on pitch control in singing is presented. Audio-electrolaryngograph recordings were made and blood samples were taken from 9 singers in each of the 3 phases of the menstrual cycle both under the placebo and the OCP conditions for a total of 6 months. Participants sang an exercise consisting of an ascending octave followed by a descending major triad, starting on pitches F4 and B4. Pitch control was assessed in terms of the octave's deviations from pure intonation and of the vibrato rate and extent. Results: Significant differences were found between the 3 phases of the cycle regarding octave size only for pitch F5 during OCP use. Significant vibrato rate differences between placebo and OCP conditions were found only for pitch F5. Conclusion: OCP use may have an effect on pitch control in singers. Possible explanations point to a complex interaction between hormonal milieu and pitch control, enhancing the need for longitudinal studies.
35.	Lagerberg, Tove B, et al. (författare) An Investigation of the Clinical Use of a Single-Word Procedure to Assess Intelligibility (Swedish Test of Intelligibility for Children) and an Evaluation of the Validity and Reliability of the Intelligibility in Context Scale 2019 Ingår i: Journal of Speech Language and Hearing Research. - : American Speech Language Hearing Association. - 1092-4388 .- 1558-9102. ; 62:3, s. 668-681 Tidskriftsartikel (refereegranskat)abstract Purpose: Intelligibility is a core concept of speech-language pathology, central both to the assessment of speech disorders and to intervention in such disorders. One purpose of this study was to investigate the reliability and usability of a single-word assessment procedure, the Swedish Test of Intelligibility for Children (STI-CH), in a clinical setting. Another purpose was to investigate the validity and reliability of an assessment method designed to assess functional intelligibility: the Intelligibility in Context Scale (ICS). Method: Thirty children aged 4;1-10;1 years; months were recruited from speech-language pathology clinics in Western Sweden. Each child's treating speech-language pathologist served as listener in the STI-CH assessment while the ICS was completed by each child's parents. External listeners (2 last-year speech-language pathology students) were used to assess the validity of the speech-language pathology. Results: The mean duration of the test procedure for the STI-CH was about 19 min, and 57% of the test sessions were reported as difficult. There was a weak but statistically significant correlation between the results from the STI-CH and the ICS (r = .40, p < .05), and both methods showed high reliability in terms of interlistener reliability (intraclass correlation exceeding .97) and internal consistency, respectively. Conclusions: The STI-CH had high reliability and was time efficient but had some procedural problems. The ICS had moderate validity but high reliability. The STI-CH is promising for clinical use but needs to be developed further. The validity of the ICS can be discussed and needs to be further investigated.
36.	Lagerberg, Tove B, et al. (författare) Intelligibility of children with speech sound disorders evaluated by listeners with Swedish as a second language 2019 Ingår i: Journal of Speech, Language, and Hearing Research. - 1092-4388 .- 1558-9102. ; 62:10, s. 3714-3727 Tidskriftsartikel (refereegranskat)abstract © 2019 The Authors. Purpose: This study aimed to investigate the intelligibility of children’s atypical speech in relation to listeners’ language background. Method: Forty-eight participants listened to and transcribed isolated words repeated by children with speech sound disorders. Participants were divided into, on the one hand, a multilingual group (n = 29) that was further divided into subgroups based on age of acquisition (early, 0–3 years; intermediate, 4–12 years; and late, > 12 years) and, on the other hand, a monolingual comparison group (n = 19). Results: The monolingual listeners obtained higher intelligibility scores than the multilingual listeners; this difference was statistically significant. Participants who acquired Swedish at an older age (> 4 years) were found to have lower scores than other listeners. The later the age of acquisition, the less of the atypical speech was decoded correctly. A further analysis of the transcriptions also revealed a higher level of nonwords among the incorrect transcriptions of the multilinguals than that of the monolinguals who used more real words, whereas both groups were equally prone to using blanks when they did not perceive a word. Conclusions: This indicates a higher risk of communicative problems between late acquirers of Swedish and children with speech sound disorders. Clinical implications, such as involving communication partners in the intervention process, are discussed as well as possible linguistic explanations to the findings. This study could be seen as a starting point in the field of research regarding the relations between the language background of the listener and the ability to perceive atypical speech.
37.	Lamarche, Anick, 1977-, et al. (författare) Not Just Sound II : an Investigation of Singer patient Self-Perceptions Mapped into the Voice Range Profile 2008 Ingår i: Journal of Speech, Language and Hearing Research. - 1092-4388 .- 1558-9102. Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract Purpose: In aiming at higher specificity in clinical evaluations of the singing voice, singer perceptions were included and tested in conjunction with the voice range profile. Method: The use of a commercial phonetograph supplemented by a hand-held response button was clinically tested with 13 subjects presenting voice complaints. Singer patients were asked to press a button to indicate sensations of vocal discomfort or instability during phonation. Each press was registered at the actual position in the Voice Range Profile (VRP) so as to mark areas of difficulty. Consistency of button press behavior was assessed with a method developed previously. Results: In spite of their voice complaints, subjects did not press the button as much as healthy singers. Like healthy singers, the singer-patient group demonstrated consistent behavior but tended to press the button in completely different areas of the VRP space. The location of the presses was dominantly in the interior of the VRP and concentrated to a small fundamental frequency range. An extensive discussion examines carefully the reasons for such outcomes. Conclusion: The button augmented VRP could be a well needed resource for clinicians but requires further development and work.
38.	Laplante-Lévesque, Ariane, et al. (författare) Predictors of Rehabilitation Intervention Decisions in Adults With Acquired Hearing Impairment 2011 Ingår i: Journal of Speech, Language and Hearing Research. - : American Speech-Language-Hearing Association. - 1092-4388 .- 1558-9102. ; 54, s. 1385-1399 Tidskriftsartikel (refereegranskat)abstract Purpose: This study investigated the predictors of rehabilitation intervention decisions in middle-age and older adults with acquired hearing impairment seeking help for the first time.Method: Using shared decision making, 139 participants were offered intervention options: hearing aids, communication programs (group or individual), and no intervention. Multivariate analysis (logistic regression) provided odds ratios and 95% confidence intervals for intervention decision predictors when all other variables were held constant.Results: Seven intervention decision predictors were identified: (a) application for subsidized hearing services (participants more likely to choose hearing aids and less likely to choose communication programs), (b) hearing impairment (hearing aids more likely and no intervention less likely), (c) communication self-efficacy (hearing aids less likely), (d) powerful others as locus of control (hearing aids less likely), (e) hearing disability perceived by others and self (hearing aids more likely), (f ) perceived communication program effectiveness (communication programs more likely), and (g) perceived suitability of individual communication program (hearing aids less likely and communication programs more likely).Conclusion: Findings suggest the need for clinicians to explicitly elicit the predictors identified by this study when involving adults with acquired hearing impairment in intervention decisions.
39.	Lidestam, Björn, et al. (författare) Visual phonemic ambiguity and speechreading 2006 Ingår i: Journal of Speech, Language and Hearing Research. - : American Speech Language Hearing Association. - 1092-4388 .- 1558-9102. ; 49:4, s. 835-847 Tidskriftsartikel (refereegranskat)abstract Purpose: To study the role of visual perception of phonemes in visual perception of sentences and words among normal-hearing individuals. Method: Twenty-four normal-hearing adults identified consonants, words, and sentences, spoken by either a human or a synthetic talker. The synthetic talker was programmed with identical parameters within phoneme groups, hypothetically resulting in simplified articulation. Proportions of correctly identified phonemes per participant, condition, and task, as well as sensitivity to single consonants and clusters of consonants, were measured. Groups of mutually exclusive consonants were used for sensitivity analyses and hierarchical cluster analyses. Results: Consonant identification performance did not differ as a function of talker, nor did average sensitivity to single consonants. The bilabial and labiodental clusters were most readily identified and cohesive for both talkers. Word and sentence identification was better for the human talker than the synthetic talker. The participants were more sensitive to the clusters of the least visible consonants with the human talker than with the synthetic talker. Conclusions: it is suggested that ability to distiguish between clusters of the least visually distinct phonemes is important in speech reading. Specifically, it reduces the number of candidates, and thereby facilitates lexical identification.
40.	Lindström, Fredric, et al. (författare) Comparison of two methods of voice activity detection in field studies 2009 Ingår i: Journal of Speech, Language and Hearing Research. - Rockville : American speech-language-hearing association. - 1092-4388 .- 1558-9102. ; 52:6, s. 1658-1663 Tidskriftsartikel (refereegranskat)abstract Purpose: To evaluate and compare the performance of 2 methods of voice activity detection (neck-attached accelerometer vs. binaural recordings) in field studies in environments where voice activity normally occurs.Method: A group of 11 healthy adults wore recording equipment during their lunch break. We used binary classification to analyze the results from the 2 methods. The output was compared to a gold standard, obtained through listening tests, and the probability for sensitivity (Ps) and false positive (Pf) was rated. The binary classifiers were set for consistent sensitivity of 99%; thus, the lower false positive rate would indicate the method with the better performance.Results: The neck-attached accelerometer (Pf = 0.5%) performed significantly (p < .001) better than the binaural method (Pf = 7%).Conclusion: The neck-attached accelerometer is more suitable than the binaural method for voice assessments in environments where people are speaking in close proximity to each other and where the signal-to-noise ratio is moderate to low.
41.	Löfqvist, Anders, et al. (författare) Lip and jaw kinematics in bilabial stop consonant production 1997 Ingår i: Journal of Speech, Language, and Hearing Research. - 1558-9102. ; 40:4, s. 877-893 Tidskriftsartikel (refereegranskat)
42.	MacCutcheon, Douglas, et al. (författare) The contribution of individual differences in memory span and language ability to spatial release from masking in young children 2019 Ingår i: Journal of Speech, Language and Hearing Research. - : ASHA. - 1092-4388 .- 1558-9102. ; 62:10, s. 3741-3751 Tidskriftsartikel (refereegranskat)abstract Purpose: Working memory capacity and language ability modulate speech reception; however, the respective roles of peripheral and cognitive processing are unclear. The contribution of individual differences in these abilities to utilization of spatial cues when separating speech from informational and energetic masking backgrounds in children has not yet been determined. Therefore, this study explored whether speech reception in children is modulated by environmental factors, such as the type of background noise and spatial configuration of target and noise sources, and individual differences in the cognitive and linguistic abilities of listeners.Method: Speech reception thresholds were assessed in 39 children aged 5-7 years in simulated school listening environments. Speech reception thresholds of target sentences spoken by an adult male consisting of number and color combinations were measured using an adaptive procedure, with speech-shaped white noise and single-talker backgrounds that were either collocated (target and back-ground at 0°) or spatially separated (target at 0°, background noise at 90° to the right). Spatial release from masking was assessed alongside memory span and expressive language.Results and Conclusion: Significant main effect results showed that speech reception thresholds were highest for informational maskers and collocated conditions. Significant interactions indicated that individual differences in memory span and language ability were related to spatial release from masking advantages. Specifically, individual differences in memory span and language were related to the utilization of spatial cues in separated conditions. Language differences were related to auditory stream segregation abilities in collocated conditions that lack helpful spatial cues, pointing to the utilization of language processes to make up for losses in spatial information.
43.	Mishra, Sushmit, 1981-, et al. (författare) Visual Information Can Hinder Working Memory Processing of Speech 2013 Ingår i: Journal of Speech, Language and Hearing Research. - : American Speech-Language-Hearing Association. - 1092-4388 .- 1558-9102. ; 56:4, s. 1120-1132 Tidskriftsartikel (refereegranskat)abstract PURPOSE:The purpose of the present study was to evaluate the new Cognitive Spare Capacity Test (CSCT), which measures aspects of working memory capacity for heard speech in the audiovisual and auditory-only modalities of presentation.METHOD:In Experiment 1, 20 young adults with normal hearing performed the CSCT and an independent battery of cognitive tests. In the CSCT, they listened to and recalled 2-digit numbers according to instructions inducing executive processing at 2 different memory loads. In Experiment 2, 10 participants performed a less executively demanding free recall task using the same stimuli.RESULTS:CSCT performance demonstrated an effect of memory load and was associated with independent measures of executive function and inference making but not with general working memory capacity. Audiovisual presentation was associated with lower CSCT scores but higher free recall performance scores.CONCLUSIONS:CSCT is an executively challenging test of the ability to process heard speech. It captures cognitive aspects of listening related to sentence comprehension that are quantitatively and qualitatively different from working memory capacity. Visual information provided in the audiovisual modality of presentation can hinder executive processing in working memory of nondegraded speech material.
44.	Moradi, Shahram, et al. (författare) Visual Cues Contribute Differentially to Audiovisual Perception of Consonants and Vowels in Improving Recognition and Reducing Cognitive Demands in Listeners With Hearing Impairment Using Hearing Aids 2017 Ingår i: Journal of Speech, Language and Hearing Research. - : American Speech-Language-Hearing Association. - 1092-4388 .- 1558-9102. ; 60:9, s. 2687-2703 Tidskriftsartikel (refereegranskat)abstract Purpose We sought to examine the contribution of visual cues in audiovisual identification of consonants and vowels—in terms of isolation points (the shortest time required for correct identification of a speech stimulus), accuracy, and cognitive demands—in listeners with hearing impairment using hearing aids.Method The study comprised 199 participants with hearing impairment (mean age = 61.1 years) with bilateral, symmetrical, mild-to-severe sensorineural hearing loss. Gated Swedish consonants and vowels were presented aurally and audiovisually to participants. Linear amplification was adjusted for each participant to assure audibility. The reading span test was used to measure participants' working memory capacity.Results Audiovisual presentation resulted in shortened isolation points and improved accuracy for consonants and vowels relative to auditory-only presentation. This benefit was more evident for consonants than vowels. In addition, correlations and subsequent analyses revealed that listeners with higher scores on the reading span test identified both consonants and vowels earlier in auditory-only presentation, but only vowels (not consonants) in audiovisual presentation.Conclusion Consonants and vowels differed in terms of the benefits afforded from their associative visual cues, as indicated by the degree of audiovisual benefit and reduction in cognitive demands linked to the identification of consonants and vowels presented audiovisually.
45.	Nygren, U, et al. (författare) Magnetic Resonance Imaging of the Vocal Folds in Women With Congenital Adrenal Hyperplasia and Virilized Voices 2016 Ingår i: Journal of speech, language, and hearing research : JSLHR. - 1558-9102. ; 59:4, s. 713-721 Tidskriftsartikel (refereegranskat)
46.	Oates, J, et al. (författare) Gender-Affirming Voice Training for Trans Women: Effectiveness of Training on Patient-Reported Outcomes and Listener Perceptions of Voice 2023 Ingår i: Journal of speech, language, and hearing research : JSLHR. - 1558-9102. ; 66:11, s. 4206-4235 Tidskriftsartikel (refereegranskat)
47.	Oosthuizen, Ilze, et al. (författare) Patient-Reported Outcome Measures for Hearing Aid Benefit and Satisfaction : Content Validity and Readability 2023 Ingår i: Journal of Speech, Language and Hearing Research. - : American Speech-Language-Hearing Association. - 1092-4388 .- 1558-9102. ; 66:10, s. 4117-4136 Tidskriftsartikel (refereegranskat)abstract PURPOSE: Numerous patient-reported outcome measures (PROMs) are available to measure hearing aid benefit and satisfaction. It is unclear to what extent currently available PROMs on hearing aid outcomes, often developed decades ago, meet current guidelines for good content validity and readability. This study evaluated the content validity and readability of PROMs that focus on perceived hearing aid benefit and/or satisfaction.METHOD: A literature review was conducted to identify eligible instruments. Content validity evaluation included mapping extracted questionnaire items to the World Health Organization's International Classification of Functioning, Disability and Health (ICF) framework. In addition, study design in content validity methodology was evaluated using the COnsensus-based Standards for the selection of health Measurement INstruments study design checklist for PROM instruments. Readability was estimated using the Simple Measure of Gobbledygook measure.RESULTS: Thirteen questionnaires were identified and evaluated. Item content focused primarily on the components of environmental factors as well as activity limitations and participation restrictions with less emphasis on body functions and personal factors. The content validity methodology analysis revealed an underuse or lack of reporting of a qualitative methodology in assessing patient and professional perspectives. All the included questionnaires exceeded the recommended sixth-grade reading level.CONCLUSIONS: The categories covered by hearing aid PROMs vary considerably, with no single instrument comprehensively covering all the key ICF components. Future development of hearing aid outcome measures should consider a mixed methodology approach for improved content validity and ensure an appropriate reading level.
48.	Pabon, Peter, 1956-, et al. (författare) Fourier Descriptor Analysis and Unification of Voice Range Profile Contours : Method and Applications 2011 Ingår i: Journal of Speech, Language and Hearing Research. - : American Speech Language Hearing Association. - 1092-4388 .- 1558-9102. ; 54:3, s. 755-776 Tidskriftsartikel (refereegranskat)abstract Purpose: To describe a method for unified description, statistical modeling, and comparison of voice range profile (VRP) contours, even from diverse sources. Method: A morphologic modeling technique, which is based on Fourier descriptors (FDs), is applied to the VRP contour. The technique, which essentially involves resampling of the curve of the contour, is assessed and also is compared to density-based VRP averaging methods that use the overlap count. Results: VRP contours can be usefully described and compared using FDs. The method also permits the visualization of the local covariation along the contour average. For example, the FD-based analysis shows that the population variance for ensembles of VRP contours is usually smallest at the upper left part of the VRP. To illustrate the method's advantages and possible further application, graphs are given that compare the averaged contours from different authors and recording devices-for normal, trained, and untrained male and female voices as well as for child voices. Conclusions: The proposed technique allows any VRP shape to be brought to the same uniform base. On this uniform base, VRP contours or contour elements coming from a variety of sources may be placed within the same graph for comparison and for statistical analysis.
49.	Patel, Rita R., 1975-, et al. (författare) Quantitative and Qualitative Electroglottographic Wave Shape Differences in Children and Adults Using Voice Map-Based Analysis 2021 Ingår i: Journal of Speech, Language and Hearing Research. - : American Speech-Language-Hearing Association. - 1092-4388 .- 1558-9102. ; 64:8, s. 2977-2995 Tidskriftsartikel (refereegranskat)abstract Purpose: The purpose of this study is to identify the extent to which various measurements of contacting parameters differ between children and adults during habitual range and overlap vocal frequency/intensity, using voice map–based assessment of noninvasive electroglottography(EGG).Method: EGG voice maps were analyzed from 26 adults(22–45 years) and 22 children (4–8 years) during connected speech and vowel /a/ over the habitual range and the overlap vocal frequency/intensity from the voice range profile task on the vowel /a/. Mean and standard deviations of contact quotient by integration, normalized contacting speed, quotient of speed by integration, and cycle-rate sample entropy were obtained. Group differences were evaluated using the linear mixed model analysis for the habitual range connected speech and the vowel, whereas analysis of covariance was conducted for the overlap vocal frequency/intensity from the voice range profile task. Presence of a “knee” on the EGG wave shape was determined by visual inspection of the presence of convexity along the decontacting slope of the EGG pulse and the presence of the second derivative zero-crossing.Results: The contact quotient by integration, normalized contacting speed, quotient of speed by integration, and cycle-rate sample entropy were significantly different in children compared to (a) adult males for habitual range and(b) adult males and adult females for the overlap vocal frequency/intensity. None of the children had a “knee” on the decontacting slope of the EGG slope.Conclusion: EGG parameters of contact quotient by integration, normalized contacting speed, quotient of speed by integration, cycle-rate sample entropy, and absence of a “knee” on the decontacting slope characterize the waveshape differences between children and adults, whereas the normalized contacting speed, quotient of speed by integration, cycle-rate sample entropy, and presence of a “knee” on the downward pulse slope characterize the waveshape differences between adult males and adult females.Supplemental Material: https://doi.org/10.23641/asha.15057345
50.	Peterson, Robin, et al. (författare) Shared etiology of phonological memory and vocabulary deficits in school-age children 2013 Ingår i: Journal of Speech, Language and Hearing Research. - : American Speech-Language-Hearing Association. - 1092-4388 .- 1558-9102. ; 56:4, s. 1249-1259 Tidskriftsartikel (refereegranskat)abstract Purpose: The goal of this study was to investigate the etiologic basis for the association between deficits in phonological memory (PM) and vocabulary in school-age children.Method: Children with deficits in PM or vocabulary were identified within the International Longitudinal Twin Study (ILTS; Samuelsson et al., 2005). The ILTS includes 1,045 twin pairs (between the ages of 5 and 8 years) from the United States, Australia, and Scandinavia. The authors applied the DeFries-Fulker ( DeFries & Fulker, 1985, 1988) regression method to determine whether problems in PM and vocabulary tend to co-occur because of overlapping genes, overlapping environmental risk factors, or both.Results: Among children with isolated PM deficits, the authors found significant bivariate heritability of PM and vocabulary weaknesses both within and across time. However, when probands were selected for a vocabulary deficit, there was no evidence for bivariate heritability. In this case, it appears that the PM–vocabulary relationship is caused by common shared environmental experiences.Conclusions: The findings are consistent with previous research on the heritability of specific language impairment and suggest that there are etiologic subgroups of children with low vocabulary for different reasons, 1 being more influenced by genes and another being more influenced by environment.

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