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Neuroplasticity in ...
Neuroplasticity in response to cognitive behavior therapy for social anxiety disorder
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- Månsson, Kristoffer N T (författare)
- Linköpings universitet,Psykologi,Filosofiska fakulteten,PRIMA Barn and Vuxenpsykiatri, Sweden
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- Salami, Alireza (författare)
- Karolinska Institutet,Umeå universitet,Umeå centrum för funktionell hjärnavbildning (UFBI),Department of Neurobiology, Care Sciences and Society, Aging Research Center, Karolinska Institutet, Stockholm, Sweden,Karolinska Institute, Sweden; Umeå University, Sweden
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- Frick, Andreas (författare)
- Uppsala universitet,Institutionen för psykologi,Uppsala University, Sweden
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- Carlbring, Per (författare)
- Stockholms universitet,Klinisk psykologi,Stockholm University, Sweden
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- Andersson, Gerhard (författare)
- Linköpings universitet,Karolinska Institutet,Psykologi,Filosofiska fakulteten,Karolinska Institute, Sweden
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- Furmark, Tomas (författare)
- Uppsala universitet,Institutionen för psykologi,Uppsala University, Sweden
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- Boraxbekk, Carl-Johan, 1980- (författare)
- Umeå universitet,Enheten för demografi och åldrandeforskning (CEDAR),Umeå centrum för funktionell hjärnavbildning (UFBI),Umeå University, Sweden
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(creator_code:org_t)
- 2016-02-02
- 2016
- Engelska.
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Ingår i: Translational Psychiatry. - : Springer Science and Business Media LLC. - 2158-3188. ; 6
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Abstract
Ämnesord
Stäng
- Patients with anxiety disorders exhibit excessive neural reactivity in the amygdala, which can be normalized by effective treatment like cognitive behavior therapy (CBT). Mechanisms underlying the brain’s adaptation to anxiolytic treatments are likely related both to structural plasticity and functional response alterations, but multimodal neuroimaging studies addressing structure–function interactions are currently missing. Here, we examined treatment-related changes in brain structure (gray matter (GM) volume) and function (blood–oxygen level dependent, BOLD response to self-referential criticism) in 26 participants with social anxiety disorder randomly assigned either to CBT or an attention bias modification control treatment. Also, 26 matched healthy controls were included. Significant time × treatment interactions were found in the amygdala with decreases both in GM volume (family-wise error (FWE) corrected PFWE=0.02) and BOLD responsivity (PFWE=0.01) after successful CBT. Before treatment, amygdala GM volume correlated positively with anticipatory speech anxiety (PFWE=0.04), and CBT-induced reduction of amygdala GM volume (pre–post) correlated positively with reduced anticipatory anxiety after treatment (PFWE0.05). In addition, we observed greater amygdala neural responsivity to self-referential criticism in socially anxious participants, as compared with controls (PFWE=0.029), before but not after CBT. Further analysis indicated that diminished amygdala GM volume mediated the relationship between decreased neural responsivity and reduced social anxiety after treatment (P=0.007). Thus, our results suggest that improvement-related structural plasticity impacts neural responsiveness within the amygdala, which could be essential for achieving anxiety reduction with CBT.
Ämnesord
- SAMHÄLLSVETENSKAP -- Psykologi (hsv//swe)
- SOCIAL SCIENCES -- Psychology (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Psykiatri (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Psychiatry (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine (hsv//eng)
Nyckelord
- neuroplasticity
- CBT
- social anxiety disorder
- amygdala
- BOLD
- Psychology
- psykologi
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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