Blindness to form from motion despite intact static form perception and motion detection
Blindness to form from motion despite intact static form perception and motion detection
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DOI:
10.1016/s0028-3932(99)00117-7
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发表时间:
2000-01-01
期刊:
影响因子:
2.6
通讯作者:
Vaina, LM
中科院分区:
文献类型:
--
作者:
Cowey, A;Vaina, LM
We studied the motion perception, including form and meaning generated by motion, in a hemianopic patient who also bad visual perceptual impairments in her seeing hemifeld as a result of a lesion in ventral extrastriate cortex. She was unable to recognise 2- or 3-dimensional forms, and ei en borders, generated by motion alone, failed to recognise mimed actions err the Johannson 'biological motion' display, and ceased to recognise people well-known to her when they moved. I-Icr 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. (C) 2000 Elsevier Science Ltd. All rights reserved.