Accession Number : AD0697568

Title :   TWO MOTOR SYSTEMS FOR THE OCULOMOTOR APPARATUS AND THEIR FUNCTION IN NYSTAGMIC MOVEMENTS OF THE EYES,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Matyushkin,D. P.

Report Date : 24 MAR 1969

Pagination or Media Count : 12

Abstract : An electrographic investigation of the work of the external rectus muscle of the eye in the postrolatory nystagmus and opticokinetic nystagmus was conducted in eight rabbits to learn more about the functions of the phase and tonic systems. It was found that the distribution of functions between the phase and the tonic systems in both types of nystagmus is similar. The activity of the muscles in the rapid phases of a nystagmus is always connected with the appearance of short biphase action potentials in the EMG. But, it should be noted that with realization of the rapid phases, intensification of slow oscillations of the tonic system also takes place. Activation of the tonic system at the time of rapid phases ensures temporary fixation of the eyes in a new position. Activity of the muscles during the slow phases of a nystagmus is characterized by intensification of slow oscillations of the potentials, which develop gradually. (Author)

Descriptors :   (*EYE, MOBILITY), (*NYSTAGMUS, NERVE IMPULSES), VISION, MUSCLES, NERVE FIBERS, ELECTROMYOGRAPHY, RABBITS, BIONICS, OPHTHALMOLOGY, VOLTAGE, ELECTROPHYSIOLOGY

Subject Categories : Anatomy and Physiology
      Bionics

Distribution Statement : APPROVED FOR PUBLIC RELEASE