Correlation between amygdala activation and amygdala–vACC functional connectivity.

<p>Amygdala activation in response to fearful facial stimuli was negatively correlated with amygdala-vACC functional connectivity, <i>r</i>(13) = .64, <i>p</i> = .0001. The selected seed region within the amygdala was a cluster that showed greater functional connectivity with vACC in the SC than SD condition (<i>p</i><0.001, uncorrected). Data from the SC and SD sessions were combined and plotted in one graph but differently colored; SD data in squares, SC in triangles. vACC, ventral anterior cingulate cortex; SC, sleep control condition; SD, sleep debt condition.