This is located deep in the temporal lobes and involved in emotional regulation and perception of odors. All smells travel directly to this. Cooking smells can elicit memories of childhood events and holidays. A traumatic event can result in the formation of the fear response, causing the fight or flight reflex within the autonomic nervous system and affects the hypothalamic-pituitary-adrenal (HPA) axis causing the release of stress hormones (e.g. cortisol). Also is involved in the interpretation of facial expressions and sexual stimuli.

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