The amygdala is “a structure in the limbic system that is linked to emotions and aggression. The amygdala functions to control fear responses, the secretion of hormones, arousal and the formation of emotional memories.

The amygdala is a small, almond shaped mass of nuclei located in the temporal lobes of the brain near the hippocampus.” (Source: About.com)

Machine Briefs:
Option #1: amygdala= A/MIG/DA/LA
Option #2: amygdala= A/MIG/DA/LA*
Option #3: amygdala= A/MIG/DLA