| 1. |
- Dagöö, Jesper, et al.
(författare)
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Cognitive behavior therapy versus interpersonal psychotherapy for social anxiety disorder delivered via smartphone and computer: A randomized controlled trial
- 2014
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Ingår i: Journal of Anxiety Disorders. - : Elsevier BV. - 1873-7897 .- 0887-6185. ; 28:4, s. 410-417
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Tidskriftsartikel (refereegranskat)abstract
- In this study, a previously evaluated guided Internet-based cognitive behavior therapy for social anxiety disorder (SAD) was adapted for mobile phone administration (mCBT). The treatment was compared with a guided self-help treatment based on interpersonal psychotherapy (mIPT). The treatment platform could be accessed through smartphones, tablet computers, and standard computers. A total of 52 participants were diagnosed with SAD and randomized to either mCBT (n = 27) or mIPT (n = 25). Measures were collected at pre-treatment, during the treatment, post-treatment and 3-month follow-up. On the primary outcome measure, the Liebowitz Social Anxiety Scale - self-rated, both groups showed statistically significant improvements. However, mCBT performed significantly better than mIPT (between group Cohen's d = 0.64 in favor of mCBT). A larger proportion of the mCBT group was classified as responders at post-treatment (55.6% versus 8.0% in the mIPT group). We conclude that CBT for SAD can be delivered using modern information technology. IPT delivered as a guided self-help treatment may be less effective in this format. (c) 2014 Elsevier Ltd. All rights reserved.
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| 2. |
- Andersson, Gerhard, et al.
(författare)
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Effects of Two Forms of Internet-Delivered Cognitive Behaviour Therapy for Depression on Future Thinking
- 2013
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Ingår i: Cognitive Therapy and Research. - New York, USA : Springer Science and Business Media LLC. - 0147-5916 .- 1573-2819. ; 37:1, s. 29-34
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Tidskriftsartikel (refereegranskat)abstract
- The aim of this study was to investigate if future thinking would change following two forms of Internet-delivered cognitive behavior therapy (ICBT) for major depression. A second aim was to study the association between pre-post changes in future thinking and pre-post changes in depressive symptoms. Effects of psychological treatments are most often tested with self-report inventories and seldom with tests of cognitive function. We included data from 47 persons diagnosed with major depression who received either e-mail therapy or guided self-help during 8 weeks. Participants completed a future thinking task (FTT), in which they were asked to generate positive and negative events that they thought were going to happen in the future and rated the events in terms of emotion and likelihood. The FTT was completed before and after treatment. Data on depressive symptoms were also collected. FTT index scores for negative events were reduced after treatment. There was no increase for the positive events. Change scores for the FTT negative events and depression symptoms were significantly correlated. We conclude that ICBT may lead to decreased negative future thinking and that changes in depression symptoms correlate to some extent with reductions in negative future thinking.
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| 3. |
- Andersson, Michael, et al.
(författare)
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Stabilization of evanescent wave propagation operators
- 2022
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- This paper presents a stabilized scheme that solves the wave propagation problem in a general bianisotropic, stratified medium. The method utilizes the concept of propagators, i.e., the wave propagation operators that map the total tangential electric and magnetic fields from one plane in the slab to another. The scheme transforms the propagator approach into a scattering matrix form, where a spectral decomposition of the propagator enables separation of the exponentially growing and decaying terms in order to obtain a well-conditioned formulation. Multilayer structures can be handled in a stable manner using the dissipative property of the Redheffer star product for cascading scattering matrices. The reflection and transmission dyadics for a general bianisotropic medium with an isotropic half space on both sides of the slab are presented in a coordinate-independent dyadic notation, as well as the reflection dyadic for a bianisotropic slab with perfect electric conductor backing (PEC). Several numerical examples that illustrate the performance of the stabilized algorithm are presented.
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| 4. |
- Andersson, Michael, et al.
(författare)
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Stabilization of Evanescent Wave Propagation Operators
- 2023
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Ingår i: Progress In Electromagnetics Research B. - 1937-6472. ; 101, s. 17-44
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Tidskriftsartikel (refereegranskat)abstract
- This paper presents a stabilized scheme that solves the wave propagation problem in a general bianisotropic, stratified medium. The method utilizes the concept of propagators, i.e., the wave propagation operators that map the total tangential electric and magnetic fields from one plane in the slab to another. The scheme transforms the propagator approach into a scattering matrix form, where a spectral decomposition of the propagator enables separation of the exponentially growing and decaying terms in order to obtain a well-conditioned formulation. Multilayer structures can be handled in a stable manner using the dissipative property of the Redheffer star product for cascading scattering matrices. The re ection and transmission dyadics for a general bianisotropic medium with an isotropic half space on both sides of the slab are presented in a coordinate-independent dyadic notation, as well as the re ection dyadic for a bianisotropic slab with perfect electric conductor backing (PEC). Several numerical examples that illustrate the performance of the stabilized algorithm are presented.
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| 5. |
- Bjärehed, Jonas, et al.
(författare)
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Less Positive or More Negative? Future-Directed Thinking in Mild to Moderate Depression
- 2009
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Ingår i: Cognitive Behaviour Therapy. - : Informa UK Limited. - 1651-2316 .- 1650-6073.
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Tidskriftsartikel (refereegranskat)abstract
- Depressed patients have been found to generate fewer anticipated positive future events, but most previous studies have included patients who have either been severely depressed or expressed suicidal thoughts and intents or both. The aim of this study was to compare positive and negative future-directed thinking in persons with mild to moderate depression who did not express suicidal thoughts or intents (n = 20) with a matched group of nondepressed persons (n = 20). The two groups completed the Future-Thinking Task (FTT), in which they were asked to generate positive and negative anticipated future events for three upcoming time periods (1 week, 1 year, and 5-10 years). In the present version of the FTT, both quantitative and qualitative aspects were included (i.e. subjective likelihood and emotional valence). Results showed that depressed persons reported lower scores regarding anticipated future positive events but they did not differ in terms of future negative events. The results are consistent with previous research and further strengthen the notion that reduced anticipation of future positive events is a defining characteristic of depression, even in the absence of suicidal ideation.
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| 6. |
- Brännström, Jonas, et al.
(författare)
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The initial evaluation of an Internet-based support system for audiologists and first-time hearing aid clients
- 2016
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Ingår i: Internet Interventions. - : Elsevier BV. - 2214-7829. ; 4, s. 82-91
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Tidskriftsartikel (refereegranskat)abstract
- Objectives: Audiologists provide professional contact and support between appointments to clients with hearing impairment using telephone and e-mail, but more advanced and flexible technological platforms are also possible. The present study aimed to evaluate the clinical application of an Internet-based support system for audiologists and their first-time hearing aid clients. Design: An Internet-based support system developed by Månsson et al. (2013) for psychologists and their clients was adapted for audiologic purposes. Three audiologic clinics in Sweden tested the support system with their clients. Study sample: Twenty-three clients managed by four audiologists used and evaluated the support system. In addition, five of the clients and all four audiologists were interviewed and their responses were analyzed using content analysis. Results: The clients and the audiologists reported positive experiences and overall satisfaction but audiologists reported that the support system did not address the needs of all clients. More positive experiences and greater satisfaction with the support system were associated with reductions on self-reported consequences of hearing loss and positive hearing aids outcomes. Conclusions: An Internet-based support system can be used in audiologic rehabilitation. Both audiologists and clients recognized the system's potential value to offer an online support to the provision of audiologic services.
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| 7. |
- Brännström, Jonas, et al.
(författare)
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The Process of Developing an Internet-Based Support System for Audiologists and First-Time Hearing Aid Clients
- 2015
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Ingår i: American Journal of Audiology. - : American Speech-Language-Hearing Association. - 1059-0889 .- 1558-9137. ; 24:3, s. 320-324
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Tidskriftsartikel (refereegranskat)abstract
- Background: In audiologic practice, complementary information sources and access to the clinician between appointments improve information retention and facilitate adjustment behaviors. An Internet-based support system is a novel way to support information sharing and clinician access. Purpose: This research forum article describes the process of developing an Internet-based support system for audiologists and their first-time hearing aid clients. Method: The iterative development process, including revisions by 4 research audiologists and 4 clinical audiologists, is described. The final system is exemplified. Conclusion: An Internet-based support system was successfully developed for audiologic practice.
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| 8. |
- Fu, Michael, 1963, et al.
(författare)
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Adherence to optimal heart rate control in heart failure with reduced ejection fraction : insight from a survey of heart rate in heart failure in Sweden (HR-HF study)
- 2017
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Ingår i: Clinical Research in Cardiology. - : SPRINGER HEIDELBERG. - 1861-0684 .- 1861-0692. ; 106:12, s. 960-973
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Tidskriftsartikel (refereegranskat)abstract
- Despite that heart rate (HR) control is one of the guideline-recommended treatment goals for heart failure (HF) patients, implementation has been painstakingly slow. Therefore, it would be important to identify patients who have not yet achieved their target heart rates and assess possible underlying reasons as to why the target rates are not met. The survey of HR in patients with HF in Sweden (HR-HF survey) is an investigator-initiated, prospective, multicenter, observational longitudinal study designed to investigate the state of the art in the control of HR in HF and to explore potential underlying mechanisms for suboptimal HR control with focus on awareness of and adherence to guidelines for HR control among physicians who focus on the contributing role of beta-blockers (BBs). In 734 HF patients the mean HR was 68 +/- 12 beats per minute (bpm) (37.2% of the patients had a HR > 70 bpm). Patients with HF with reduced ejection fraction (HFrEF) (n = 425) had the highest HR (70 +/- 13 bpm, with 42% > 70 bpm), followed by HF with preserved ejection fraction and HF with mid-range ejection fraction. Atrial fibrillation, irrespective of HF type, had higher HR than sinus rhythm. A similar pattern was observed with BB treatment. Moreover, non-achievement of the recommended target HR (< 70 bpm) in HFrEF and sinus rhythm was unrelated to age, sex, cardiovascular risk factors, cardiovascular diseases, and comorbidities, but was related to EF and the clinical decision of the physician. Approximately 50% of the physicians considered a HR of > 70 bpm optimal and an equal number considered a HR of > 70 bpm too high, but without recommending further action. Furthermore, suboptimal HR control cannot be attributed to the use of BBs because there was neither a difference in use of BBs nor an interaction with BBs for HR > 70 bpm compared with HR < 70 bpm. Suboptimal control of HR was noted in HFrEF with sinus rhythm, which appeared to be attributable to physician decision making rather than to the use of BBs. Therefore, our results underline the need for greater attention to HR control in patients with HFrEF and sinus rhythm and thus a potential for improved HF care.
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| 9. |
- Hjorth, Olof, et al.
(författare)
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Serotonin and dopamine transporter availability in social anxiety disorder after combined treatment with escitalopram and cognitive-behavioral therapy
- 2022
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Ingår i: Translational Psychiatry. - : Springer Science and Business Media LLC. - 2158-3188. ; 12:1
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Tidskriftsartikel (refereegranskat)abstract
- Selective serotonin reuptake inhibitors (SSRIs) and internet-based cognitive behavioral therapy (ICBT) are recommended treatments of social anxiety disorder (SAD), and often combined, but their effects on monoaminergic signaling are not well understood. In this multi-tracer positron emission tomography (PET) study, 24 patients with SAD were randomized to treatment with escitalopram+ICBT or placebo+ICBT under double-blind conditions. Before and after 9 weeks of treatment, patients were examined with positron emission tomography and the radioligands [11C]DASB and [11C]PE2I, probing the serotonin (SERT) and dopamine (DAT) transporter proteins respectively. Both treatment combinations resulted in significant improvement as measured by the Liebowitz Social Anxiety Scale (LSAS). At baseline, SERT-DAT co-expression was high and, in the putamen and thalamus, co-expression showed positive associations with symptom severity. SERT-DAT co-expression was also predictive of treatment success, but predictor-outcome associations differed in direction between the treatments. After treatment, average SERT occupancy in the SSRI + ICBT group was >80%, with positive associations between symptom improvement and occupancy in the nucleus accumbens, putamen and anterior cingulate cortex. Following placebo+ICBT, SERT binding increased in the raphe nuclei. DAT binding increased in both groups in limbic and striatal areas, but relations with symptom improvement differed, being negative for SSRI + ICBT and positive for placebo + ICBT. Thus, serotonin-dopamine transporter co-expression exerts influence on symptom severity and remission rate in the treatment of social anxiety disorder. However, the monoamine transporters are modulated in dissimilar ways when cognitive-behavioral treatment is given concomitantly with either SSRI-medication or pill placebo.
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| 10. |
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