Social anxiety and age are associated with neural response to social evaluation during adolescence.

Adolescence is a sensitive period for the development of adaptive social behaviors and social anxiety, possibly due to aspects of brain development. However, research is needed to examine interactions among age, social anxiety, and social dynamics previously shown to influence neural responding. The current functional magnetic resonance imaging (fMRI) study examines brain function in 8-18 year-olds with varying levels of social anxiety. Interactions are examined among age, social anxiety, and two key task factors: valence and predictability of social interactions. Results demonstrate age, social anxiety severity, and each of the two key task-based factors interact to predict neural response in the caudate, middle and superior temporal gyri. In particular, among adolescents less-than 13 years of age, higher social anxiety predicted greater responding to unpredictable negative evaluations. However, in this same age group, the opposite pattern emerged during receipt of unpredictable positive evaluations, with less neural response in more anxious youth. Adolescents aged 13 and older overall showed less robust effects. We discuss these findings in terms of age- and anxiety-related differences in socioemotional processing.

Behavioral activation system moderates self-referent processing following recovery from depression.

BACKGROUND: Previous research has implicated the behavioral activation system (BAS) in depression. The relationship of BAS functioning to aspects of cognitive vulnerability to depression, however, is not known. Method The present study investigated associations among level of BAS functioning and the encoding and recall of positive and negative self-referent information in currently non-depressed participants with a history of recurrent major depression (recovered; RMD) and in never-depressed control participants (CTL). Participants completed self-report measures of levels of BAS and behavioral inhibition system (BIS) functioning. Following a negative mood induction, participants were presented with a series of positive and negative adjectives; they indicated which words described them and later recalled as many of the words as they were able. RESULTS: The relationship of BAS functioning to self-referent processing was dependent on participant group. Although lower BAS reward responsivity was associated with the endorsement and recall of fewer positive words across groups, the magnitude of these associations was stronger, and was only significant, within the RMD group. Furthermore, only for RMD participants was lower BAS reward responsivity associated with the endorsement of more negative words. These effects were not accounted for by depressive or anxiety symptoms, current mood, or level of BIS functioning. CONCLUSIONS: These results indicate that BAS functioning may be distinctively linked to negatively biased self-referent processing, one facet of cognitive vulnerability to depression, in individuals with a history of major depressive disorder. Enhancing BAS functioning may be important in buffering cognitive vulnerability to depression.