AP PSYCHOLOGY

BIOLOGICAL BASES OF BEHAVIOR

THE LIMBIC SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
This part of the limbic system controls aggression and fear.
A
Amygdala
B
Hypothalamus
C
Cerebellum
D
Hippocampus
Explanation: 

Detailed explanation-1: -Amygdala. The amygdala’s name refers to its almond-like shape. Located right next to the hippocampus, the left and right amygdalae play a central role in our emotional responses, including feelings like pleasure, fear, anxiety and anger.

Detailed explanation-2: -The amygdala is commonly thought to form the core of a neural system for processing fearful and threatening stimuli (4), including detection of threat and activation of appropriate fear-related behaviors in response to threatening or dangerous stimuli.

Detailed explanation-3: -The central nucleus of the amygdala also produces conscious perception of emotion primarily through the ventral amygdalofugal output pathway to the anterior cingulate cortex, orbitofrontal cortex, and prefrontal cortex. Stimulation of the amygdala causes intense emotion, such as aggression or fear.

Detailed explanation-4: -The limbic structures conventionally include the amygdala, the hippocampus, the fornix, the mammillary bodies, the cingulate gyrus, and the parahippocampal gyrus, which lie mainly on the medial side of the temporal lobe.

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