VISION DURING SACCADIC EYE-MOVEMENTS .1. VISUAL INTERACTIONS IN STRIATE CORTEX
VISION DURING SACCADIC EYE-MOVEMENTS .1. VISUAL INTERACTIONS IN STRIATE CORTEX
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DOI：
10.1152/jn.1980.43.4.1133
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发表时间：
1980-01-01
影响因子：
2.5
通讯作者：
RICHMOND, BJ
中科院分区：
文献类型：
--
作者：
JUDGE, SJ;WURTZ, RH;RICHMOND, BJ
心理物理学实验表明，扫视运动过程中的短暂刺激被扫视前后的视觉刺激所掩盖。这种掩蔽效应的生理相关性进行了研究，通过研究清醒的猴子[猕猴]的初级视觉（纹状）皮层的单细胞的反应进行了训练，以固定和扫视眼球运动。所有的细胞表现出衰减的视觉刺激的反应，在扫视时，扫视之前的刺激落在细胞的感受野。在扫视后落在感受野上的刺激通常不会减弱扫视期间对刺激的反应。相反，对在扫视期间和扫视之后发生的刺激的反应通常不可分割地合并，就好像存在单个刺激一样，在扫视期间的刺激的时间处开始，并且在扫视后刺激的偏移的时间处偏移。刺激的相互作用的影响是更强大的比任何输入到纹状皮层发生的必然结果产生的扫视（中央抑制）或由于在周边视野（周边或移位效应）的刺激的运动抑制。这种影响是强大的，足以成为一个重要的生理机制，缺乏知觉期间sacchardic眼运动在轮廓的环境。
Psychophysical experiments demonstrated that the brief stimulation during saccadic eye movement is masked by visual stimuli before and after the saccade. The physiological correlates of this masking effect were investigated by studying the response of single cells in the primary visual (striate) cortex of awake monkeys [Macaca mulatta] trained to fixate and make saccadic eye movements. All cells showed an attenuation of the response to visual stimulation during a saccade when the saccade was preceded by a stimulus falling on the receptive field of the cell. Stimuli falling on the receptive field following the saccade usually did not attenuate the response to stimulation during a saccade. Instead the responses to stimuli occuring during a saccade and after a saccade usually merged indistinguishably as though there were a single stimulus, with onset at the time of the stimulus during the saccade and offset at the time of offset of the post-saccadic stimulus. The stimulus interaction effects were more powerful than any input to striate cortex occurring as a corollary to generation of saccades (a central inhibition) or resulting from a suppression due to movement of stimuli in the peripheral visual field (a periphery or shift effect). The effect is powerful enough to be an important physiological mechanism underlying the lack of perception during sacchardic eye movements made in contoured environments.