TACTILE AGNOSIA AND TACTILE APHASIA - SYMPTOMATOLOGICAL AND ANATOMICAL DIFFERENCES
TACTILE AGNOSIA AND TACTILE APHASIA - SYMPTOMATOLOGICAL AND ANATOMICAL DIFFERENCES
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DOI：
10.1016/s0010-9452(13)80154-2
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发表时间：
1992-09-01
期刊：
影响因子：
3.6
通讯作者：
SUGISHITA, M
中科院分区：
文献类型：
--
作者：
ENDO, K;MIYASAKA, M;SUGISHITA, M
本文报告两例触觉命名障碍。病例1（由于双侧脑梗死导致的右手触觉失认症）正常区分物体的触觉质量，但既不能命名也不能对物体进行分类。病例2（硬膜外左顶叶血肿手术后双侧触觉失语）与病例1一样严重的触觉命名障碍，但可以正常分类物体，表明触觉识别被保留。病例1可能是第一例与触觉性失语明确区分的触觉失认症。例1的CT扫描显示病变位于左侧角回，右侧顶叶、颞叶和枕叶。例2病变位于左侧角回和胼胝体后放射。我们的研究结果表明，触觉失认症出现时，躯体感觉联合皮层是由位于下颞叶的语义记忆存储的角回皮层下leison断开，而触觉失语症代表触觉-言语断开。
Two patients with tactile naming disorders are reported. Case 1 (right hand tactile agnosia due to bilateral cerebral infarction) differentiated tactile qualities of objects normally, but could neither name nor categorize the objects. Case 2 (bilateral tactile aphasia after operation of an epidural left parietal haematoma) had as severe a tactile naming disturbance as Case 1, but could categorize objects normally, demonstrating that tactile recognition was preserved. Case 1 may be the first case of tactile agnosia clearly differentiated from tactile aphasia. CT scans of Case 1 revealed lesions in the left angular gyrus, and in the right parietal, temporal, and occipital lobes. Case 2 had lesions in the left angular gyrus and of posterior callosal radiations. Our findings suggest that tactile agnosia appears when the somatosensory association cortex is disconnected by a subcortical leison of the angular gyrus from the semantic memory store located in the inferior temporal lobe, while tactile aphasia represents a tactual-verbal disconnection.