MICROANATOMY

Detailed explanation-1: -The amygdala contributes to these fear circuits in two ways: directly, by detecting the threat on an unconscious level and regulating behavioral and physiological responses, and indirectly, through cognitive systems, in the emergence of a conscious feeling of fear.

Detailed explanation-2: -Facial expressions of fear and anger, which both signal potential threat to an observer, result in significant increases in amygdala activity, even when the faces are unattended or presented briefly and masked.

Detailed explanation-3: -Together, these findings indicate that the amygdala plays an extensive role in regulating the fear response in humans as well as animals.

Detailed explanation-4: -"We have long known that the amygdala is important in processing emotion from faces, ‘’ says Adolphs.