视觉性共济失调误差取决于重新映射的目标位置，而非所看到的目标位置。
Optic ataxia errors depend on remapped, not viewed, target location.
作者信息
Khan A Z, Pisella L, Vighetto A, Cotton F, Luauté J, Boisson D, Salemme R, Crawford J D, Rossetti Y
机构信息
Espace et Action, Institut National de la Santé et de la Recherche Médicale, U534, Institut Fédératif des Neurosciences Lyon, 16 avenue Doyen Lépine, 69676, Bron, France.
出版信息
Nat Neurosci. 2005 Apr;8(4):418-20. doi: 10.1038/nn1425. Epub 2005 Mar 13.
Optic ataxia is a disorder associated with posterior parietal lobe lesions, in which visually guided reaching errors typically occur for peripheral targets. It has been assumed that these errors are related to a faulty sensorimotor transformation of inputs from the 'ataxic visual field'. However, we show here that the errors observed in the contralesional field in optic ataxia depend on a dynamic gaze-centered internal representation of reach space.
视觉性共济失调是一种与顶叶后部病变相关的疾病，其中，对于周边目标的视觉引导性伸手动作通常会出现错误。人们一直认为，这些错误与来自“共济失调视野”的输入的感觉运动转换错误有关。然而，我们在此表明，在视觉性共济失调患者对侧视野中观察到的错误取决于以注视为中心的动态伸手空间内部表征。
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