Effects of cingulate cortex lesions on emotional behavior and delayed responses in cats.
Bilateral thermocoagulation of the cingulate gyri produced an abolishment of fear reactions concomitantly with an exaggerated aggressiveness and a drastic impairment of delayed responses. The changes in emotionality subsided after several months but there was no recovery, even after prolonged post-operative training, of the dalayed responses with a 5 min delay. Only partial improvement of the responses with shorter delays (10 sec and 1 min) was observed. This memory deficit is discussed in terms of disruption of neuronal limbic circuits necessary for maintaining the impulse reverberation.
D000374:Aggression; D000818:Animals; D001522:Behavior, Animal; D002415:Cats; D003163:Competitive Behavior; D005239:Fear; D006179:Gyrus Cinguli / Q000502:physiology*; D006801:Humans; D008568:Memory; D011930:Reaction Time