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INFLUENCE OF VISUAL STIMULI ON EYE-POSITION RELATED ACTIVITIES OF NEURONS IN PRIMARY VISUAL CORTEX (VI)OF AWAKE MONKEYS

GUO KUN, LI CHAO-YI

Shanghai Institute of Physiology, Chinese Academy of Sciences, Shanghai 200031 Laboratory of Visual Information Processing, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101)

Abstract

Extracellular recordings were made in the primary visual cortex(Vl)in two
awake monkeys to test the influence of visual stimuli on the eye-position related activites of the neurons. While the monkeys gazed on a fixation point (FP) positioned sequentially at different locations on a TV screen，two types of visual stimuli were presented on the same screen:(1)A small light ring flashed repeatedly around the FP or (2) A prefered light bar shifted continuously across the cell's receptive field (RF).Both stimuli significantly enhanced the eye-position related activities and corresponding1y increased the incidence of the eye-position dependent neurons. The results show that
the integration of information on vision and on eye position may take place at quite the earliest stage of the visual cortices.

Key words: monkey;striate cortex;eye position;fixation;gaze field;receptive field

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Citing This Article：

GUO KUN, LI CHAO-YI. INFLUENCE OF VISUAL STIMULI ON EYE-POSITION RELATED ACTIVITIES OF NEURONS IN PRIMARY VISUAL CORTEX (VI)OF AWAKE MONKEYS . Acta Physiol Sin 1997; 49 (4): (in Chinese with English abstract).