Interactions of the nucleus of optic tract and vestibular system with gaze stabilization

Author

Formigoni, Carlos Eduardo ; Pelá, Carlos Alberto ; Colafêmina, José F.

Author_Institution

Dept. de Fisica e Matematica, Sao Paulo Univ., Brazil

fYear

1996

fDate

9-11 Dec 1996

Firstpage

237

Lastpage

239

Abstract

We investigated the interaction of the vestibular nucleus (VN) with the nucleus of optic tract (NOT) for gaze stabilization. Observer movement changes the image that comes into the retina and the NOT vestibular interaction can be responsible for gaze stabilization. To verify this behavior the subjects were stimulated with visual patterns at 85 deg/sec. We waited 10 minutes for the eye´s accommodation because the room has a controlled light intensity separated by 11.5 lux. We observed that an angular displacement and a gain of a slow phase component of the nystagmus occurred when visual pathways are “on” and a decrease in amplitude of the signal showing that the NOT modulates the vestibular nucleus (VN)

Keywords

biomedical measurement; brain; eye; neurophysiology; eye accommodation; gaze stabilization; nystagmus; observer movement; optic tract; retina; vestibular nucleus; vestibular system; visual pathways; visual patterns; Amplitude modulation; Biomedical optical imaging; Calibration; Electrodes; Eyes; Lighting control; Phase modulation; Retina; Stimulated emission; Visual system;

fLanguage

English

Publisher

ieee

Conference_Titel

Cybernetic Vision, 1996. Proceedings., Second Workshop on

Conference_Location

Sao Carlos

Print_ISBN

0-8186-8058-X

Type

conf

DOI

10.1109/CYBVIS.1996.629471

Filename

629471