Impairment of Action to Visual Objects in a Case of Ideomotor Apraxia
Impairment of Action to Visual Objects in a Case of Ideomotor Apraxia
复制标题
意念运动性失用症患者对视觉对象的动作受损
DOI：
10.1080/02643299108253383
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发表时间：
1991
影响因子：
3.4
通讯作者：
G. Humphreys
中科院分区：
文献类型：
--
作者：
Emerita J Pilgrim;G. Humphreys
摘要：本文报道了一例右颞叶和额叶病变后出现单手左手失用症的左撇子患者。GF在视觉刺激下习得左手手势的能力特别弱，而在给予视觉和触觉输入以及被要求对物体的名字做手势时，他在左手手势方面表现得更好。GF相对擅长用右手向物体做手势，而不管物体的呈现方式如何。他还具有完整的本体感觉和/或动觉知识，可以正确地进行左臂和手的运动。当他被要求用右手做一个适当的干预动作时，或者当他在对一系列物体做手势的间隙用左手做简单的重复动作时，GFs的表现会有所提高。GFs的例子支持将可视输入直接映射到操作的观点。他的缺陷被认为是由于无法抑制不恰当的行为。
Abstract A single-case study is reported of a left-handed patient (GF) who presented with a unimanual left-handed apraxia following lesions of the right temporal and frontal lobes. GF was particularly impaired at making learned left-handed gestures to visual stimuli, and he was rather better at left-hand gestures when given visual and tactile input and when asked to gesture to the name of the object. GF was relatively good at making right-hand gestures to objects irrespective of the modality of presentation. He also had intact proprioceptive and/or kinesthetic knowledge of the correct left arm and hand movements to make. GFs performance improved when he was asked to make an appropriate intervening action with his right hand, or when he had to perform simple repetitive actions with his left hand in between making gestures to a series of objects. GFs case supports the argument for a direct route mapping visual input to action. His impairment is attributed to a problem in inhibiting inappropriate actions wit...