Figure 3.
Anxiety influences attentional modulation of amygdala activity to fearful versus neutral faces. A, Amygdala activity to attended fearful (AF) faces versus attended neutral (AN) faces relative to unattended fearful (UF) faces versus unattended neutral (UN) faces against STAI state anxiety. Activation plotted is mean percentage signal change associated with this contrast for the peak voxel from the left amygdala ROI (x,y,z = -18, -10, -20; Z = 2.80; p corrected <0.02). A trend toward a similar relationship was observed with in the right amygdala ROI (x, y, z = 26, -12, -18; Z = 2.05; p corrected = 0.10). B, Amygdala activity to fearful versus neutral faces by attentional condition and anxiety level. Participants were divided into low- and high-anxious groups using a median split on STAI state anxiety scores. Amygdala activity is mean percentage signal change for the peak voxel from A.