Integrating visual cues for motor control: A matter of time
Integrating visual cues for motor control: A matter of time
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DOI：
10.1016/j.visres.2005.01.025
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发表时间：
2005-07-01
期刊：
影响因子：
1.8
通讯作者：
Saunders, JA
中科院分区：
文献类型：
--
作者：
Greenwald, HS;Knill, DC;Saunders, JA
视觉系统不断整合多种感官线索，以帮助计划和控制日常运动任务。我们量化了受试者如何整合单眼线索（轮廓和纹理）和双眼线索（视差和聚散）在整个物体放置任务的3D表面取向，发现双眼线索有助于在线控制比规划。对刺激扰动的纠正反应的时间分析表明，视觉系统处理双眼线索比单眼线索快。这表明双眼线索主导了在线控制，因为它们可以更快地获得，从而影响了更大比例的运动。这与我们的发现一致，即双眼信息的相对影响对短时间运动比长时间运动更高。一个电机控制模型，最佳整合不同延迟的线索占我们的研究结果，并表明，电机控制的线索整合部分取决于线索处理的时间过程。(c)2005爱思唯尔有限公司保留所有权利。
The visual system continuously integrates multiple sensory cues to help plan and control everyday motor tasks. We quantified how subjects integrated monocular cues (contour and texture) and binocular cues (disparity and vergence) about 3D surface orientation throughout an object placement task and found that binocular cues contributed more to online control than planning. A temporal analysis of corrective responses to stimulus perturbations revealed that the visuomotor system processes binocular cues faster than monocular cues. This suggests that binocular cues dominated online control because they were available sooner, thus affecting a larger proportion of the movement. This was consistent with our finding that the relative influence of binocular information was higher for short-duration movements than long-duration movements. A motor control model that optimally integrates cues with different delays accounts for our findings and shows that cue integration for motor control depends in part on the time course of cue processing. (c) 2005 Elsevier Ltd. All rights reserved.