Eye–hand coordination (or 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. It has been studied in activities as diverse as tea making, the movement of solid objects such as wooden blocks, sporting performance, music reading, online first person computer gaming, and copy-typing. It is a way of performing everyday tasks and 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.

Behavior 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 over movements in order to guide movements. Usually, the eyes fixate upon a target before the hands are used to engage in a movement, indicating that the eyes are used to provide spatial information for the hands . Furthermore, the duration that the eyes appear to be locked onto a goal for a hand movement varies, with the eyes sometimes remaining 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 have been shown to be able to aim eye movements toward the hand without vision, using spatial information from hand proprioception.

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