Seeing the world through non rose-colored glasses: anxiety and the amygdala response to blended expressions.

ABSTRACT: Anxious individuals have a greater tendency to categorize faces with ambiguous emotional expressions as fearful (Richards et al., 2002). These behavioral findings might reflect anxiety-related biases in stimulus representation within the human amygdala. Here, we used functional magnetic resonance imaging (fMRI) together with a continuous adaptation design to investigate the representation of faces from three expression continua (surprise-fear, sadness-fear, and surprise-sadness) within the amygdala and other brain regions implicated in face processing. Fifty-four healthy adult participants completed a face expression categorization task. Nineteen of these participants also viewed the same expressions presented using type 1 index 1 sequences while fMRI data were acquired. Behavioral analyse

SUBMITTER: Bishop SJ 

PROVIDER: S-EPMC4375986 | biostudies-literature | 2015

REPOSITORIES: biostudies-literature