The effect on affective and cognitive behavior in the dog of lesions of the pyriform-amygdala-hippocampal complex.

Abstract

The effect of lesions in the p-a-h complex of dogs is more similar in most respects to the results obtained in monkeys than to those found with cats. Dogs were less responsive to stimulation in general, although appropriate response would be made to persistent stimuli. Effects on social behavior were found to be importantly dependent upon the particular test situation used, the dogs being less timid post-operatively in relations with their handlers but markedly less competitive in group feeding situations. No consistent abnormality of sexual behavior was noted. There was, in general, marked impairment in visual discrimination performance.