Our basic fear responses are primarily coordinated by the amygdala.

Amygdala

A part of the brain involved in emotion regulation, especially fear and aggression.

Fear Responses

The psychological and physiological reactions to perceived threats that can include fight, flight, or freeze responses, often involving activations of the amygdala and sympathetic nervous system.

Basic

Referring to something fundamental, simple, or at the introductory level; often used to signify essential concepts or principles.