AP PSYCHOLOGY

Detailed explanation-1: -Observers watching fearful faces show more brain activity in the amygdala than those watching angry faces. Observers watching angry faces show less brain activity in the thalamus than do those watching fearful faces.-Disgust causes increased activity in the right prefrontal cortex.

Detailed explanation-2: -The human amygdala plays a crucial role in processing affective information conveyed by sensory stimuli. 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: -Amygdala lesions impair the ability to seek out and make use of the eye region of faces, resulting in impaired fear perception.

Detailed explanation-4: -Stimulation of the amygdala causes intense emotion, such as aggression or fear. Irritative lesions of temporal lobe epilepsy have the effect of stimulating the amygdala. In its extreme form irritative lesions of temporal lobe epilepsy can cause a panic attack.

Detailed explanation-5: -The amygdala is a complex brain structure that is particularly involved in processing emotions and fear-learning.