The involvement of cognitive processing in a perceptual-motor process for achieving a task goal examined by EEG analysis

任何目标导向的运动都是根据给定任务环境的视觉信息以及任务运动来组织的。本研究研究了在视觉运动过程中的皮层活动：(1)用食指-拇指捏握目标物体；(2)捏握孔径与目标物体视觉感知大小的匹配。通过对脑电定向相干性的分析，揭示了不同的皮层区域在执行视觉运动任务时的作用，以及这些皮层区域如何相互沟通。

Any goal directed movement is organized with respect to visual information about a given task environment as well as a task movement. The present study investigated the cortical activities in the visuomotor process of : (1) grasping a target object with the index finger-thumb pinch grip and (2) matching the pinch grip aperture with respect to the visually perceived size of the target object. The analysis of directed coherence of EEG between electrodes revealed how different cortical regions, each of which plays a particular functional role, were involved and how those cortical sites communicated each other in executing the visuomotor task.