Accession Number : AD0456480


Title :   WAVE ACTIVITY IN THE SUPERIOR OLIVARY COMPLEX OF THE CAT,


Corporate Author : ARMY MEDICAL RESEARCH LAB FORT KNOX KY


Personal Author(s) : Tsuchitani, Chiyeko ; Boundreau, J C


Report Date : 30 Oct 1964


Pagination or Media Count : 15


Abstract : Wave activity in response to noise and tone stimuli was recorded during depth penetrations with microelectrodes into the superior olivary complex of the anesthetized cat. Two types of waveforms w s were identified: a slow potential in response to noise or tone bursts and a following response. The fllowing response was of the same fundamental frequency as the tonal stimulus and followed in frequency from about 100 to 2800 cps with a maximum amplitude at around 800 cps. Measurements of the amplitude of these two types of responses demonstrated peaks in and near the accessory nucleus. Major changes in phase and polarity occurred when the electrode penetrated this structure. Contralaterally evoked responses were in general of larger amplitude than those produced by ipsilateral stimulation. Stimulation of either ear evokes in the trapezoid body a traveling wave, moving at about 16 to 22 meters/sec. (Author)


Descriptors :   *NERVOUS SYSTEM , *BRAIN , PHYSIOLOGY , NERVE IMPULSES , STIMULATION(PHYSIOLOGY) , SOUND , AUDIO FREQUENCY


Distribution Statement : APPROVED FOR PUBLIC RELEASE