[Correlation of potentials evoked by tones and clicks during simultaneous recording from many points in the auditory cortex of awake cats]

Abstract

In unanaestheized cats the vooked potentials to various tones and clicks er simultaneosly recorded at 7 auditory and 1-2 somatosensory cortical points. The comparions of the evoked potentials to pure tones of equal lodness ranging from 250 to 7000 Hz showed no common cortical tonotpic distribuion. However there is an individual dependence of the potential components on the soung pitch and location of the recording point in the auditory cortex. The knonwn evoked poteintial dependence on sound intensity was confirmed and more developed regularity of this relation was revelead. With a change in sound intensity the absoulte and relative mangnitude alterations in all the potential components were observed...