Takenaka Takeshi, Kuroda Kenji
Division of Humanities and Social Science, Kobe University, Rokkodai, Nada-ku, Kobe 657-8501.
Shinrigaku Kenkyu. 2002 Jun;73(2):172-8. doi: 10.4992/jjpsy.73.172.
This study examined effects of binocular information on visual orientation perception and visuomotor control of a hand using two tasks in which observers matched the orientation of two rods. On the perceptual matching task, they were asked to make a visual judgment of the orientation of two rods. On the motor (preshaping) task, they were asked to move a rod which they can not see by their hands so as to match the orientation of the presented rod. Decrement in availability of binocular cues produced considerable disruptions on the motor task, while did less disruptions on the perceptual matching task. Hence binocular information seemed to play a critical role on the motor task. These results are consistent with recent suggestions that visual perception and visually guided motor control should be mediated by separate visual pathways.
本研究通过两项任务考察了双眼信息对视觉方向感知和手部视觉运动控制的影响，在这两项任务中，观察者要匹配两根杆的方向。在感知匹配任务中，要求他们对两根杆的方向进行视觉判断。在运动（预塑形）任务中，要求他们用手移动一根他们看不见的杆，使其与呈现杆的方向相匹配。双眼线索可用性的降低对运动任务产生了相当大的干扰，而对感知匹配任务的干扰较小。因此，双眼信息似乎在运动任务中起着关键作用。这些结果与最近的观点一致，即视觉感知和视觉引导的运动控制应由不同的视觉通路介导。
