PSYC 3103 Chapter Notes - Chapter 19: Cortisol, Amygdala, Vasopressin
11 Oct 2020
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Definition: all 3 to 5 layer cortical structures, plus the. Amygdalae are seen as part of both the reptilian and old. Motor (output) regions; as does the brain itself. Bonding involves ot and avp (evolved from vasoticin). Physical shape of infant displays its helplessness (babyfacedness). Separated young show distress vocalizations (separation cries) and stress (cortisol. The vasotocin molecule, that organizes social behavior in fish, reptiles, and birds, evolved into the oxytocin (ot, oxy) and vasopressin (avp) molecules. Ot and avp serve roles in nurturance (via ot and milk production) and protectiveness (via avp and testosterone [t]) that play less of a role in reptiles compared with mammals. Involve direct or indirect competition between individual organisms. Are associated with the amygdala regions of the brain. Bilateral cutting of the tips of the temporal lobes led to a disconnection syndrome of symptoms termed the kluver-bucy syndrome. Loss of fear to innately feared objects such as fire and snakes.
