Functional Properties of the Primary Cortical Auditory Area in Man

Abstract

D URING the last decade, computer averaging techniques that extract small signals from background activity have been used successfully in the study of human sensory systems. We have already described the extent of the human parietotemporal cortex activated by sound and the location and nature of the primary auditory cortical area of man. 4 In this paper we are reporting some of the physiological characteristics of the auditory cortex by comparing the potentials evoked with ipsilateral, contralateral, and binaural stimulation and by observation of the recovery cycle of this area.