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THE BEHAVIORAL effects of electrical stimulation in the deep structures of the temporal lobe in animals and man have been detailed by many investigators. 1-12 Due to the operative procedure in progress, most studies in man have been concerned with immediate behavioral and subjective effects. More recent investigations, employing chronic implanted electrodes for stimulation and recording, also deal primarily with the consequences of stimulation during and after the few seconds or minutes during which the current is applied. 13,14 The use of chronic implanted electrodes over extended periods permits a search for correlation of spontaneous or electrically induced abnormalities in electroencephalogram with behavior and subjective state under relatively natural conditions. Although recording from chronic indwelling cerebral electrodes from normal individuals has not been reported, records from nonepileptic subjects with mental retardation, intractable pain, and psychiatric disorders suggest that the cortex and subcortical nuclei of the temporal lobe normally present a
Janice R. Stevens (Fri,) studied this question.