The amygdala is one of two almond-shaped clusters of nuclei located deep and medially within the temporal lobes of the brain's cerebrum in complex vertebrates, including humans. Shown to perform a primary role in the processing of memory, decision making, and emotional responses, the amygdalae are considered part of the limbic system. The term "amygdala" was first introduced by Karl Friedrich Burdach in 1822.

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Hippocampal and amygdala volumes vary with with distress, anxious arousal, and trauma

Functional and structural brain abnormalities in posttraumatic stress disorder: A multimodal meta-analysis of neuroimaging studies finds that patients with PTSD showed similar pattern of aberrant resting-state functional brain activity and structure mainly in the amygdala.

Neuroscientists identify role of basolateral amygdala neurons

Amygdala changes in individuals with autism linked to anxiety

Amygdala found to have role in important pre-attentive mechanism in the brain