Behavioral changes following discrete lesions of temporal lobe structures

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Abstract
Bilateral lesions of the lateral amygdaloid nucleus produced a hypersexed cat after a period of from 8 to 10 weeks following operation. The state was intensified by lesions placed in the ventral claustrum. Stimulation of these structures did not produce the emotional behavior reactions reported from the amygdaloid complex. Bilateral lesions of the central nucleus produced aggressive behavior and increased food intake. Stimulation here caused fear or anger with gastrointestinal responses. Stimulation of the basal nucleus also produced a fear or anger response. Stimulation of the medial amygdaloid area produces ovulation and uterine contraction, suggesting an antagonistic influence between the lateral and medial areas.