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Psychobiology of Aggression

Aggression is controlled by the brain

Can be evoked by electrical stimulation of the hypothalamus and the amygdala

Lesions of the amygdala produce a tame animal

Aggression is modulated by hormones

Seasonal variations in testosterone

Deer fighting during mating season

Requires prenatal hormone exposure and brain organization

©  1999 John Wiley and Sons, Inc.

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