Self-other referential neural processing in social anxiety disorder and major depressive disorder

Background: Social anxiety disorder (SAD) and major depressive disorder (MDD) are highly comorbid and share impairments in self-referential and social processing. Many naturalistic judgements activate these processes concurrently, which can be referred to as “self-other referential processing”. We s...

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Main Authors: Laura Finlayson-Short, Ben J. Harrison, Christopher Davey
Format: Article
Language:English
Published: Elsevier 2021-01-01
Series:NeuroImage: Clinical
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2213158221001133
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author Laura Finlayson-Short
Ben J. Harrison
Christopher Davey
author_facet Laura Finlayson-Short
Ben J. Harrison
Christopher Davey
author_sort Laura Finlayson-Short
collection DOAJ
description Background: Social anxiety disorder (SAD) and major depressive disorder (MDD) are highly comorbid and share impairments in self-referential and social processing. Many naturalistic judgements activate these processes concurrently, which can be referred to as “self-other referential processing”. We sought to examine its neural correlates in young people with SAD and MDD using a novel experimental task. Methods: Fifty six young people aged 16 to 25 with diagnoses of SAD and/or MDD (15 with SAD [M = 20.3 years, 60% female], 17 with MDD [M = 19.8 years, 53% female], 24 with comorbid SAD and MDD [M = 19.8 years, 67% female]) and 76 age and gender-matched healthy controls (HCs; M = 20.7 years, 66% female) completed a novel self-other referential processing fMRI task that involved rating how much one related to emotional faces in active conditions and judging how far apart each person’s eyes were in control conditions. Results: Participants with SAD had more and those with MDD had less activity in social cognitive areas than HCs when processing social information across all conditions and emotion types. Participants with comorbid SAD-MDD exhibited a distinct pattern of neural activity to patients with single diagnoses. Across the whole sample, the activation of reward system areas (the medial orbitofrontal cortex and caudate) in response to increasing relatedness correlated positively with a dimensional measure of social anxiety. Conclusions: Young people with SAD, MDD and comorbid SAD-MDD showed deficits in social processing, but they were not specifically related to self-other referential processing. Dimensional social anxiety symptoms were correlated with reward system activation, suggesting that such symptoms are associated with an overestimation of the hedonic value of social stimuli. These novel findings have implications for our understanding of the neural correlates of SAD and MDD, suggesting that alterations in social processing and reward functioning underlie the impairments in self and social processing that characterize both disorders.
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spelling doaj.art-50863eb792f04e42abc97732c2c249632022-12-21T18:57:40ZengElsevierNeuroImage: Clinical2213-15822021-01-0130102669Self-other referential neural processing in social anxiety disorder and major depressive disorderLaura Finlayson-Short0Ben J. Harrison1Christopher Davey2Melbourne Neuropsychiatry Centre, Department of Psychiatry, University of Melbourne and Melbourne Health, Melbourne, Australia; Orygen, Melbourne, Australia; Centre for Youth Mental Health, University of Melbourne, Melbourne, Australia; Corresponding author at: Melbourne Neuropsychiatry Centre, University of Melbourne, Level 3, 161 Barry Street, Carlton, Victoria 3053, Australia.Melbourne Neuropsychiatry Centre, Department of Psychiatry, University of Melbourne and Melbourne Health, Melbourne, AustraliaMelbourne Neuropsychiatry Centre, Department of Psychiatry, University of Melbourne and Melbourne Health, Melbourne, AustraliaBackground: Social anxiety disorder (SAD) and major depressive disorder (MDD) are highly comorbid and share impairments in self-referential and social processing. Many naturalistic judgements activate these processes concurrently, which can be referred to as “self-other referential processing”. We sought to examine its neural correlates in young people with SAD and MDD using a novel experimental task. Methods: Fifty six young people aged 16 to 25 with diagnoses of SAD and/or MDD (15 with SAD [M = 20.3 years, 60% female], 17 with MDD [M = 19.8 years, 53% female], 24 with comorbid SAD and MDD [M = 19.8 years, 67% female]) and 76 age and gender-matched healthy controls (HCs; M = 20.7 years, 66% female) completed a novel self-other referential processing fMRI task that involved rating how much one related to emotional faces in active conditions and judging how far apart each person’s eyes were in control conditions. Results: Participants with SAD had more and those with MDD had less activity in social cognitive areas than HCs when processing social information across all conditions and emotion types. Participants with comorbid SAD-MDD exhibited a distinct pattern of neural activity to patients with single diagnoses. Across the whole sample, the activation of reward system areas (the medial orbitofrontal cortex and caudate) in response to increasing relatedness correlated positively with a dimensional measure of social anxiety. Conclusions: Young people with SAD, MDD and comorbid SAD-MDD showed deficits in social processing, but they were not specifically related to self-other referential processing. Dimensional social anxiety symptoms were correlated with reward system activation, suggesting that such symptoms are associated with an overestimation of the hedonic value of social stimuli. These novel findings have implications for our understanding of the neural correlates of SAD and MDD, suggesting that alterations in social processing and reward functioning underlie the impairments in self and social processing that characterize both disorders.http://www.sciencedirect.com/science/article/pii/S2213158221001133Self-referential processingSocial cognitionDefault mode networkReward systemSocial anxiety disorderMajor depressive disorder
spellingShingle Laura Finlayson-Short
Ben J. Harrison
Christopher Davey
Self-other referential neural processing in social anxiety disorder and major depressive disorder
NeuroImage: Clinical
Self-referential processing
Social cognition
Default mode network
Reward system
Social anxiety disorder
Major depressive disorder
title Self-other referential neural processing in social anxiety disorder and major depressive disorder
title_full Self-other referential neural processing in social anxiety disorder and major depressive disorder
title_fullStr Self-other referential neural processing in social anxiety disorder and major depressive disorder
title_full_unstemmed Self-other referential neural processing in social anxiety disorder and major depressive disorder
title_short Self-other referential neural processing in social anxiety disorder and major depressive disorder
title_sort self other referential neural processing in social anxiety disorder and major depressive disorder
topic Self-referential processing
Social cognition
Default mode network
Reward system
Social anxiety disorder
Major depressive disorder
url http://www.sciencedirect.com/science/article/pii/S2213158221001133
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