The Significance of Secondary Zones of Perceiving Areas and the Proreal Gyri. We carried out a special study of the association neurons that participate in the retention of delayed responses to visual perception in the dog. We found that following bilateral destruction of the secondary visual areas (areas 18 and 19), short-term memory for visual perception of a food place was absent in the first postoperative weeks. The animal, however, was able to see quite adequately; if it was shown food, it went to the latter. But if the food was concealed from the animal’s eyes, it would not go there after 10 to 15 sec. Such disturbance of short-term memory to visual perception of food subsequently recovered, but very slowly—over the course of several months.
KeywordsDelayed Response Auditory Perception Food Object Image Memory Primary Visual Area
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