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Eye–hand coordination
Eye–hand coordination (also known as hand–eye coordination) is the coordinated control of eye movement with hand movement, and the processing of visual input to guide reaching and grasping along with the use of proprioception of the hands to guide the eyes. Eye–hand coordination has been studied in activities as diverse as the movement of solid objects such as wooden blocks, archery, sporting performance, music reading, computer gaming, copy-typing, and even tea-making. It is part of the mechanisms of performing everyday tasks; in its absence most people would be unable to carry out even the simplest of actions such as picking up a book from a table or playing a video game. While it is recognized by the term ''hand–eye coordination'', without exception medical sources, and most psychological sources, refer to ''eye–hand coordination''.
==Behaviour and kinematics==
Neuroscientists have extensively researched human gaze behavior, with studies noting that the use of the gaze is very task-specific, but that humans typically exhibit proactive control to guide their movement. Usually, the eyes fixate on a target before the hands are used to engage in a movement, indicating that the eyes provide spatial information for the hands. The duration that the eyes appear to be locked onto a goal for a hand movement varies—sometimes the eyes remain fixated until a task is completed. Other times, the eyes seem to scout ahead toward other objects of interest before the hand even grasps and manipulates the object. Conversely, humans are able to aim saccades toward the hand without vision, using spatial information from hand proprioception.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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