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尽管静态形状感知和运动检测正常,但从运动中对形状失明。

Blindness to form from motion despite intact static form perception and motion detection.

作者信息

Cowey A, Vaina L M

机构信息

Department of Experimental Psychology, University of Oxford, South Parks Road, Oxford, UK.

出版信息

Neuropsychologia. 2000;38(5):566-78. doi: 10.1016/s0028-3932(99)00117-7.

Abstract

We studied the motion perception, including form and meaning generated by motion, in a hemianopic patient who also had visual perceptual impairments in her seeing hemifield as a result of a lesion in ventral extrastriate cortex. She was unable to recognise 2- or 3-dimensional forms, and even borders, generated by motion alone, failed to recognise mimed actions or the Johannson 'biological motion' display, and ceased to recognise people well-known to her when they moved. Her performance with static displays, although impaired, could not explain her inability to perceive shape or derive meaning from moving displays. Unlike a motion-blind patient, she can still see and describe the motion, with the exception of second-order motion, but not what it creates or represents.

摘要

我们研究了一名半侧盲患者的运动感知,包括运动产生的形式和意义。由于腹侧纹外皮层受损,该患者在其可见半视野中也存在视觉感知障碍。她无法识别仅由运动产生的二维或三维形式,甚至无法识别边界,无法识别模仿动作或约翰森“生物运动”展示,当熟悉的人移动时,她也无法认出他们。她在静态展示方面的表现虽然受损,但无法解释她无法从动态展示中感知形状或获取意义的原因。与运动盲患者不同,除了二阶运动外,她仍然能够看到并描述运动,但无法理解运动所产生或代表的内容。

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