Article2005

Social anxiety predicts amygdala activation in adolescents viewing fearful faces

William D. S. Killgore · Deborah A Yurgelun-Todd

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Anxiety, Depression, Psychometrics, Treatment, Cognitive Processes Child and Adolescent Psychosocial and Emotional Development Neural and Behavioral Psychology Studies

Abstract

The amygdala is critically involved in the processing of anxiety in adults, but little is known about the neurogenesis of trait-anxiety during adolescence. We correlated amygdala activity during visual presentations of fearful and happy faces with scores on the Multidimensional Anxiety Scale for Children in 16 adolescents undergoing functional magnetic resonance imaging. During fear perception, amygdala activity positively correlated with several social dimensions of anxiety, including peer rejection, humiliation, performing in public, and being separated from loved ones, but was not correlated with most measured nonsocial dimensions of anxiety. Amygdala responses during happy face presentations correlated positively only with tension/restlessness. During adolescence, amygdala activity appears to be more strongly related to social/interpersonal than nonsocial dimensions of anxiety.

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References

2004Individual Differences in Trait Anxiety Predict the Response of the Basolateral Amygdala to Unconsciously Processed Fearful Faces 2001Amygdala Response to Fearful Faces in Anxious and Depressed Children 2004State Anxiety Modulation of the Amygdala Response to Unattended Threat-Related Stimuli 2005Dose-Dependent Decrease of Activation in Bilateral Amygdala and Insula by Lorazepam During Emotion Processing 2004Neural correlates of speech anticipatory anxiety in generalized social phobia.2005Cerebral glucose metabolism associated with a fear network in panic disorder

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