AUTHOR=Cremers Henk R. , Veer Ilya M. , Spinhoven Philip , Rombouts Serge A. R. B. , Roelofs Karin 

TITLE=Neural sensitivity to social reward and punishment anticipation in social anxiety disorder

JOURNAL=Frontiers in Behavioral Neuroscience

VOLUME=8

YEAR=2015

URL=https://www.frontiersin.org/journals/behavioral-neuroscience/articles/10.3389/fnbeh.2014.00439

DOI=10.3389/fnbeh.2014.00439

ISSN=1662-5153

ABSTRACT=<p>An imbalance in the neural motivational system may underlie Social Anxiety Disorder (SAD). This study examines <italic>social</italic> reward and punishment anticipation in SAD, predicting a valence-specific effect: increased striatal activity for punishment avoidance compared to obtaining a reward. Individuals with SAD (<italic>n</italic> = 20) and age, gender, and education case-matched controls (<italic>n</italic> = 20) participated in a functional magnetic resonance imaging (fMRI) study. During fMRI scanning, participants performed a Social Incentive Delay (SID) task to measure the anticipation of social reward and punishment. The left putamen (part of the striatum) showed a valence-specific interaction with <italic>group</italic> after correcting for medication use and comorbidity. The control group showed a relatively stronger activation for reward vs. punishment trials, compared to the social anxiety group. However, <italic>post-hoc</italic> pairwise comparisons were not significant, indicating that the effect is driven by a relative difference. A connectivity analysis (Psychophysiological interaction) further revealed a general salience effect: SAD patients showed decreased putamen-ACC connectivity compared to controls for both reward and punishment trials. Together these results suggest that the usual motivational preference for social reward is absent in SAD. In addition, cortical control processes during social incentive anticipation may be disrupted in SAD. These results provide initial evidence for altered striatal involvement in both valence-specific and valence-nonspecific processing of social incentives, and stress the relevance of taking motivational processes into account when studying social anxiety.</p>