VISUAL PERCEPTION OF DIRECTION IN DARK - ROLES OF LOCAL SIGN EYE MOVEMENTS AND OCULAR PROPRIOCEPTION
VISUAL PERCEPTION OF DIRECTION IN DARK - ROLES OF LOCAL SIGN EYE MOVEMENTS AND OCULAR PROPRIOCEPTION
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DOI：
10.1016/0042-6989(66)90053-8
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发表时间：
1966-01-01
期刊：
影响因子：
1.8
通讯作者：
KIBLER, G
中科院分区：
文献类型：
--
作者：
MATIN, L;PEARCE, D;KIBLER, G
受试者在一个黑暗的房间里进行单眼测试，报告闪光的方向（6毫秒）。持续时间，3.5分钟视角，沿水平线沿着随机定位在额状平行平面中）相对于消失3秒的注视目标出现。之前尽管受试者试图将眼睛保持在与先前注视期间相同的位置，但在3秒期间，大的无意识的眼睛运动（通过接触镜技术监测）。暗间隔导致给定的闪光目标在一些试验中撞击视网膜到中央凹左侧的视网膜，而在另一些试验中撞击到右侧的视网膜。闪光方向的报告强烈地依赖于这种变化的视网膜信号的符号和幅度，而与闪光目标的物理位置无关。与视网膜信号的闪光方向的报告相关的函数的标准偏差大约是与物理目标位置的报告相关的函数的标准偏差的一半。没有证据表明，本体感受信号的眼球运动系统地影响报告的闪光灯的方向。因此，目标物理位置报告的准确性受到受试者保持其眼睛接近原始注视位置的能力的限制。
Subjects performing monocularly in an otherwise dark room reported the direction at which a flash (6 msec. duration, 3.5 min. visual angle, randomly located along the horizontal in the frontal parallel plane) appeared relative to a fixation target extinguished 3 sec. earlier. Although the subjects attempted to maintain the eye in the same position as during the prior fixation period, large involuntary eye movements (monitored by a contact-lens technique) during the 3 sec. dark interval caused a given flash target to strike the retina to the retina to the left of the fovea on some trials, and to the right on others. The report of flash direction depended strongly on the sign and magnitude of this varying retinal signal independently of the physical location of the flash target. The standard deviation of the function relating report of flash direction of the retinal signal was approximately half of the standard deviation of the function relating the report to physical target location. No evidence was found that proprioceptive signals regarding the eye movements systematically influenced the reports of flash direction. The accuracy of the report of the physical location of the target was thus limited by the subject''s ability to maintain his eye close to the original fixation position.