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Dysmetria
Dysmetria ((英語:wrong length)) refers to a lack of coordination of movement typified by the undershoot or overshoot of intended position with the hand, arm, leg, or eye. It is a type of ataxia. It is sometimes described as an inability to judge distance or scale.
Hypermetria and hypometria refer, respectively, to overshooting and undershooting the intended position.
==Overview==
The cerebellum is the area of the brain that contributes to coordination and motor processes and is anatomically inferior to the cerebrum. Sensorimotor integration is the brain’s way of integrating the information received from the sensory (or proprioceptive) neurons from the body, including any visual information. To be more specific, information needed to perform a motor task comes from retinal information pertaining to the eyes’ position and has to be translated into spatial information. Sensorimotor integration is crucial for performing any motor task and takes place in the post parietal cortex.〔 After the visual information has been translated into spatial information, the cerebellum must use this information to perform the motor task. If there is damage to any pathways that connect the pathways, dysmetria may result.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
■ウィキペディアで「Dysmetria」の詳細全文を読む
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