SMOOTH-PURSUIT INITIATION IN THE PRESENCE OF A TEXTURED BACKGROUND IN MONKEY
SMOOTH-PURSUIT INITIATION IN THE PRESENCE OF A TEXTURED BACKGROUND IN MONKEY
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DOI：
10.1016/0042-6989(86)90152-5
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发表时间：
1986-01-01
期刊：
影响因子：
1.8
通讯作者：
KHAN, NS
中科院分区：
文献类型：
--
作者：
KELLER, EL;KHAN, NS
通过测量猴子对突然匀速移动的离散视觉目标的眼球反应的前100毫秒的平均眼球加速度，研究了猴子的平滑追逐眼运动。跟踪目标的运动是在一个非常昏暗的均匀背景或一个明亮的、高度纹理化的大视场背景上开始的或偏心的中央凹。与均匀背景相比，纹理背景的效果总是降低初始眼睛加速度。与目标点运动方向相反的背景运动也降低了初始眼睛加速度。相比之下，在相同条件下，在追踪开始几百毫秒后测量的稳态跟踪仅因纹理背景的存在而略微减少。
Smooth pursuit eye movements in the monkey were studied by measuring the average eye acceleration in the first 100 msec of the ocular response to suddenly moving constant velocity discrete visual targets. The tracking target''s motion was initiated on or eccentric to the fovea against a very dimly lit homogeneous background or an illuminated, highly textured, large-field background. The effect of the textured background was always to reduce the initial eye acceleration as compared to that present in the homogeneous background case. Movement of the background in the opposite direction to target spot movement also reduced the initial eye acceleration. In contrast, steady-state tracking measured several hundred msec after the onset of pursuit under the same conditions was only marginally reduced by the presence of the textured background.