Studies of the limbic system have shown that a remarkably wide spectrum of activities can be influenced by the function of structures comprising this system. Responses in the following spheres are said to be affected by rhinencephalic stimulation and injury18: emotional expression, endocrine function, autonomic reactivity, feeding, sexual expression, metabolism, EEG, and learning of approach and avoidance and memory.12,57,65,74The foregoing is based upon studies of a variety of species and of different parts of the limbic system. Since the pioneering studies of Kluver and Bucy,35research programs have developed in the direction of fractionating the "temporal lobe syndrome" into elementary functional parts, parcellation of rhinencephalic tissue according to elementary function, and interrelation of topographic parts with subcortical and neocortical tissue.25,31,49,57,59 With respect to the topographic localization of elementary functions, there have been attempts to establish functional subdivisions