Time course of visual inhibition during voluntary saccades.
Time course of visual inhibition during voluntary saccades.
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随意扫视期间视觉抑制的时间过程。
DOI：
10.1364/josa.58.000562
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发表时间：
1968
影响因子：
--
通讯作者：
Lorrin A. Riggs
中科院分区：
文献类型：
--
作者：
F. C. Volkmann;Amy M. L. Schick;Lorrin A. Riggs
部分抑制视力发生在随意扫视眼球运动。本文报道了它的时间过程，测量检测的目标在不同的时间闪烁的扫视。选择一个刺激亮度值，该值几乎总是被注视的眼睛检测到，但几乎从未被移动的眼睛检测到。在明视观察条件下，在该亮度的6微秒闪光中，向中央凹呈现点图案。每个扫视的主题和每个刺激闪光的摄影记录允许分析的精确时间发生的闪光的扫视。在这些条件下，来自三个受试者的曲线显示，对于在扫视开始之前约20毫秒发生的闪光，检测降低到50%，并且达到最小值，使得闪光的视觉在扫视期间发生时几乎完全不存在。然后检测开始改善，对于在眼睛运动开始后约75毫秒发生的闪光，再次达到50%点。结果进行了比较与其他研究，采用不同的观看条件，并使用的数据来支持部分中枢抑制的概念进行评估。
Partial inhibition of vision occurs during voluntary saccadic eye movements. This paper reports its time course, measured by detection of a target flashed at various times in relation to the saccade. One value of stimulus luminance was chosen which was nearly always detected by the fixating eye, but hardly ever by the moving eye. A dot pattern was presented to the fovea in 6-μsec flashes of this luminance under photopic viewing conditions. Photographic records of each saccade made by the subject and each stimulus flash permitted analysis of the precise time of occurrence of the flash in relation to the saccade. Under these conditions, curves from three subjects showed that detection decreases to 50% for a flash occurring about 20 msec before the onset of the saccade and reaches a minimum such that vision of the flash is almost completely absent when it occurs during the saccade. Detection then begins to improve, reaching the 50% point again for a flash occurring about 75 msec after the onset of the eye movement. Results are compared with other studies which employed different viewing conditions, and the use of the data to support a notion of partial central inhibition is evaluated.