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Sökning: hsv:(SAMHÄLLSVETENSKAP) > Umeå universitet > Nordin Steven

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1.
  • Ståhlberg, Linnea, et al. (författare)
  • Intolerance to environmental chemicals and sounds in irritable bowel syndrome : explained by central sensitization?
  • 2018
  • Ingår i: Journal of Health Psychology. - : Sage Publications. - 1359-1053 .- 1461-7277. ; 23:10, s. 1367-1377
  • Tidskriftsartikel (refereegranskat)abstract
    • This study tested the hypotheses of irritable bowel syndrome showing (1) comorbidity with chemical and sound intolerance, other types of functionally somatic syndromes, and psychiatric disorders and (2) stronger than normal affective reactions to and behavioral disruptions from odorous/pungent chemicals and sounds in daily life. These hypotheses were tested by means of data from a large-scale population-based questionnaire study. The results showed comorbidity in irritable bowel syndrome with chemical and sound intolerance, fibromyalgia, migraine, post-traumatic stress disorder, generalized anxiety disorder, panic syndrome, and depression as well as strong reactions/disruptions from odorous/pungent chemicals and sounds in irritable bowel syndrome.
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2.
  • Andersson, Elin M, et al. (författare)
  • Does a multi-component intervention including pictorial risk communication about subclinical atherosclerosis improve perceptions of cardiovascular disease risk without deteriorating efficacy beliefs?
  • 2024
  • Ingår i: Social Science and Medicine. - : Elsevier. - 0277-9536 .- 1873-5347. ; 341
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: Pictorial communication about subclinical atherosclerosis can improve cardiovascular disease (CVD) risk, but whether it leads to long-term shifts in self-rated CVD risk (risk perception) and beliefs about possibility to influence personal risk (efficacy beliefs) is unknown.Purpose: To study the impact of personalized color-coded and age-related risk communication about atherosclerosis and motivational conversation, compared to traditional risk factor-based communication, on risk perception and efficacy beliefs. Also, whether risk perception increases with message severity.Method: The effect of the pragmatic RCT Visualization of Asymptomatic Atherosclerotic Disease for Optimum Cardiovascular Prevention (VIPVIZA) was analyzed using a linear mixed effects model with risk perception and efficacy believes at 1-year and 3-year follow up as dependent variables. Participants’ (n = 3532) CVD risk perception and efficacy beliefs were assessed with visual analog scales (0–10). Fixed effects were group (intervention vs control), time point (1 year or 3 years) and interaction between group and time point. Further, the models were adjusted for corresponding baseline measurement of the dependent variable and a baseline × time point interaction. Effect of pictorial color-coded risk in the intervention group was investigated using a corresponding mixed effects model, but with pictorial risk group (message severity) as exposure instead of intervention group.Results: After one year, the intervention group rated their CVD risk as higher (m = 0.46, 95% CI 0.32–0.59), with an effect also after 3 years (m = 0.57, 95% CI 0.43–0.70). The effect was consistent in stratified analyses by sex and education. Overall, no effect on efficacy beliefs was observed. In the intervention group, differences in CVD risk perception were found between participants with different color-coded risk messages on atherosclerosis status.Conclusion: Personalized, color-coded and age-related risk communication about atherosclerosis had an effect on risk perception with an effect also after 3 years, whereas overall, no effect on efficacy beliefs was observed.
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3.
  • Andersson, Elin M., et al. (författare)
  • From risk communication about asymptomatic atherosclerosis to cognitive and emotional reactions and lifestyle modification
  • 2024
  • Ingår i: BMC Psychology. - : BioMed Central (BMC). - 2050-7283. ; 12:1
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: Non-adherence in the general population to preventive guidelines on cardiovascular disease calls for an interdisciplinary approach acknowledging psychological factors of relevance for risk communication and lifestyle modification. Evidence is building up regarding the advantage of sharing arterial imaging evidence of subclinical atherosclerosis with asymptomatic individuals, but there is limited understanding of how this relates to mechanisms of importance for behavioural change. Longitudinal studies on associations between patients’ reactions and lifestyle modification are missing. The population-based randomized controlled trial VIPVIZA investigates the impact of pictorial information about subclinical atherosclerosis, added to traditional risk factor-based communication. The intervention includes a personalized, colour-coded and age-related risk communication strategy and a motivational conversation, and has been shown to reduce cardiovascular disease risk. Methods: In the present study we assessed cognitive and emotional reactions to the intervention, and how these reactions are associated to lifestyle modification. The participants’ evaluation of the risk communication was assessed in the intervention group (n=1749). Lifestyle modification was assessed with a lifestyle index based on physical activity, diet, smoking and alcohol consumption at baseline and after 3 years. Associations between cognitive and emotional response and lifestyle modification were tested with analyses of covariance in a subset of participants (n=714-857).Results: The intervention increased understanding of personal CVD risk, the possibility to influence the risk, and how to influence the risk. Severity of atherosclerosis was associated with emotional reactions, but emotions of strong negative valence were uncommon. Cognitive response and emotional arousal evoked by the intervention were positively associated with lifestyle modification, whereas negative emotions in isolation were not. High level of cognitive response in combination with high level of emotional arousal was found to be most beneficial for lifestyle modification.Conclusions: The results demonstrate the potential of communicating asymptomatic atherosclerosis with a pictorial, colour-coded and age-related strategy, also including a motivational conversation. Furthermore, the results show the importance of CVD risk communication evoking engagement, and that an interaction between cognitive and emotional reactions might be central for sustained lifestyle modification. Our results also indicate that, in an asymptomatic population, atherosclerosis screening may strengthen disease prevention and health promotion.
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4.
  • Andersson, Elin M., 1978- (författare)
  • From risk communication to lifestyle modification : interactions of reactions for actions
  • 2024
  • Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
    • Aim: From a health psychological perspective, the great need of effective cardiovascular disease (CVD) prevention and the potential of pictorial presentation of subclinical atherosclerosis as part of risk communication implies two important lines of inquiry which constitute the overall aims of this thesis: 1) To explore and assess psychological intervention response in terms of cognitive and emotional reactions to health risk communication about subclinical atherosclerosis, 2) To assess associations between psychological intervention response and lifestyle modification.Methods: The pragmatic population-based randomized controlled trial VIPVIZA investigates the impact of pictorial information about subclinical atherosclerosis, added to traditional risk factor-based communication. The intervention includes a personalized, colour-coded and age-related risk communication strategy and a motivational conversation, and has been shown to reduce cardiovascular disease risk. Study 1 assessed cognitive and emotional reactions to the intervention, and how reactions were associated to lifestyle modification, measured with a lifestyle index based on physical activity, diet, smoking and alcohol consumption. To gain deeper understanding of why the intervention is effective, Study 2 qualitatively explored reactions evoked by the intervention as well as attitudes to any implemented lifestyle changes among VIPVIZA participants in the intervention group with improved health status. Study 3 assessed risk perception and efficacy beliefs in the intervention group and the control group after one and three years. Furthermore, this study assessed whether risk perception increased with message severity. Study 4 assessed the impact of the VIPVIZA intervention on participants' risk perception accuracy, and also whether risk perception accuracy after one and three years was associated with sustained lifestyle change.Results: The result letter was easy to understand and the intervention increased understanding of personal CVD risk, the possibility to influence the risk, and how to influence the risk. High level of cognitive response in combination with high level of emotional arousal was found to be most beneficial for lifestyle modification. Informants perceived risk messages to be clear, accurate, reliable and emotionally engaging. Study 1 and Study 2 suggest that an interplay between cognitive and emotional reactions is crucial from early reactions to risk messages, through the decision-making process of behavioural change to maintenance of a healthy lifestyle. The intervention group perceived their cardiovascular disease risk as higher after one year, compared to the control group, with the effect persisting after three years. Within the intervention group, differences in CVD risk perception were found among participants receiving different color-coded risk messages on atherosclerosis status. The intervention had an impact on accuracy of risk perception. Accuracy of risk perception was associated with long-term behaviour change. Underestimating risk was associated with a decrease in health behaviours.Conclusions: As captured by the idiom "A picture says more than a thousand words", the results indicate that pictorial communication of atherosclerosis is easy to understand, enhances comprehension of risk, and evoke a powerful response. In other words: the communication is effective. Furthermore, in line with the idiom "Seeing is believing", which suggests that seeing something first-hand makes it more credible or believable, the results suggest that pictorial communicating on atherosclerosis status increase understanding of CVD risk since being perceived as accurate, reliable and convincing. In other words: pictorial communication is trustworthy and convincing. Future CVD interventions should acknowledge the role of accuracy of risk perception for behaviour change and focus on strengthening efficacy beliefs.
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5.
  • Andersson, Kjell, et al. (författare)
  • Inomhusklimat och riskkommunikation
  • 2010
  • Ingår i: Allergi i praksis. - Oslo : Astma och allergiförbundet. - 0806-5462. ; :2, s. 52-58
  • Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
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6.
  • Andersson, Linus, 1979-, et al. (författare)
  • Attention bias and sensitization in chemical sensitivity.
  • 2009
  • Ingår i: Journal of psychosomatic research. - : Elsevier BV. - 1879-1360 .- 0022-3999. ; 66:5, s. 407-16:66, s. 407-416
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVE: We investigated whether persons with self-reported chemical sensitivity (CS) have an attention bias and enhanced sensitization to chemical exposure. METHODS: Chemosomatosensory, olfactory, and auditory event-related potentials (ERPs) were recorded from 21 CS subjects and 17 controls in attend and ignore conditions. Reaction times (RTs) and magnitude estimations of perceived intensity were collected in the attend condition. ERPs were averaged over attention conditions and during the first/second part of the testing. RESULTS: ERP patterns indicated that CS subjects did not habituate to the same extent as the controls and had difficulties ignoring the chemical exposure. CS subjects had faster overall RT, and the perceived intensities for the chemosomatosensory stimuli did not decrease with time in the CS group, which was the case for the controls. CONCLUSIONS: These results indicating attention bias and enhanced sensitization in CS suggest alterations in central, cognitive responses to chemical exposure.
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7.
  • Andersson, Linus, et al. (författare)
  • Brain responses to olfactory and trigeminal exposure in idiopathic environmental illness (IEI) attributed to smells : An fMRI study
  • 2014
  • Ingår i: Journal of Psychosomatic Research. - : Elsevier. - 0022-3999 .- 1879-1360. ; 77:5, s. 401-408
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVE: Idiopathic environmental intolerance (IEI) to smells is a prevalent medically unexplained illness. Sufferers attribute severe symptoms to low doses of non-toxic chemicals. Despite the label, IEI is not characterized by acute chemical senses. Theoretical models suggest that sensitized responses in the limbic system of the brain constitute an important mechanism behind the symptoms. The aim was to investigate whether and how brain reactions to low-levels of olfactory and trigeminal stimuli differ in individuals with and without IEI. METHODS: Brain responses to intranasally delivered isoamyl acetate and carbon dioxide were assessed in 25 women with IEI and 26 non-ill controls using functional magnetic resonance imaging. RESULTS: The IEI group had higher blood-oxygenated-level-dependent (BOLD) signal than controls in the thalamus and a number of, mainly, parietal areas, and lower BOLD signal in the superior frontal gyrus. The IEI group did not rate the exposures as more intense than the control group did, and there were no BOLD signal differences between groups in the piriform cortex or olfactory regions of the orbitofrontal cortex. CONCLUSIONS: The IEI reactions were not characterized by hyper-responsiveness in sensory areas. The results can be interpreted as a limbic hyperreactivity and speculatively as an inability to inhibit salient extemal stimuli.
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8.
  • Andersson, Linus, 1979-, et al. (författare)
  • Chemosensory attention, habituation and detection in women and men
  • 2011
  • Ingår i: International Journal of Psychophysiology. - : Elsevier. - 0167-8760 .- 1872-7697. ; 79, s. 316-322
  • Tidskriftsartikel (refereegranskat)abstract
    •  The aim of this study was to investigate whether there are differences between women and men in how chemosensory stimuli are processed. Event-related potentials from 36 participants (18 men) showed that women had larger P3 amplitudes when attending, but not when ignoring CO 2 but not for n-butanol, compared with men. The main finding was that women and men differ in cognitive measures of chemosensory processing. 
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9.
  • Andersson, Linus, 1979-, et al. (författare)
  • Effects of Task Demands on Olfactory, Auditory, and Visual Event-Related Potentials Suggest Similar Top-Down Modulation Across Senses
  • 2018
  • Ingår i: Chemical Senses. - : Oxford University Press (OUP). - 0379-864X .- 1464-3553. ; 43:2, s. 129-134
  • Tidskriftsartikel (refereegranskat)abstract
    • A widely held view is that top-down modulation of sensory information relies on an amodal control network that acts through the thalamus to regulate incoming signals. Olfaction lacks a direct thalamic projection, which suggests that it may differ from other modalities in this regard. We investigated the late positive complex (LPC) amplitudes of event-related potentials (ERP) from 28 participants, elicited by intensity-matched olfactory, auditory and visual stimuli, during a condition of focused attention, a neutral condition, and a condition in which stimuli were to be actively ignored. Amplitudes were largest during the attend condition, lowest during the ignore condition, with the neutral condition in between. A Bayesian analysis resulted in strong evidence for similar effects of task across sensory modalities. We conclude that olfaction, despite its unique neural projections, does not differ from audition and vision in terms of task-dependent neural modulation of the LPC.
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10.
  • Andersson, Linus, 1979-, et al. (författare)
  • On the relation between capsaicin sensitivity and responsiveness to CO2: detection sensitivity and event-related brain potentials.
  • 2009
  • Ingår i: International archives of occupational and environmental health. - : Springer Science and Business Media LLC. - 1432-1246 .- 0340-0131. ; 82:3, s. 285-90
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVE: Sensory hyperreactivity (SHR) with predominantly airway symptoms is a subgroup of chemical intolerance to various environmental substances with pungent/odorous properties. The hallmark of SHR is sensitivity to capsaicin inhalation, resulting in extensive coughing likely to be mediated by a C-fiber hyperreactivity of the airway sensory neurons. However, it is not clear whether capsaicin sensitivity implies a greater sensitivity to chemosomatosensory substances in general. Therefore, the present study tested the hypothesis of an association between capsaicin cough sensitivity and sensitivity to CO(2) with respect to detection sensitivity and electrophysiological brain response. METHODS: A correlational study was employed to investigate the relation between capsaicin cough sensitivity and detection thresholds and chemosomatosensory event-related potentials (ERPs) for CO(2) presented in the nasal cavity in 35 persons varying in capsaicin cough sensitivity. RESULTS: Number of coughs were found to correlate negatively with CO(2) threshold and tended to correlate negatively also with N1 and P2 latencies of the chemosomatosensory ERP for CO(2). No tendencies of correlations were found between number of coughs and latencies for olfactory and auditory ERPs, recorded for comparison, but, unexpectedly, were found between number of coughs and auditory N1 amplitude. CONCLUSIONS: The results imply that capsaicin cough sensitivity, such as in SHR, is related to higher detection sensitivity, and tends to be related to faster cortical processing of other chemosomatosensory substances, at least of CO(2).
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