Left hand tactile agnosia after posterior callosal lesion

被引：23

作者：

Balsamo, Maddalena ^{[1
]}

Trojano, Luigi ^{[1
]}

Giamundo, Arcangelo ^{[2
]}

Grossi, Dario ^{[1
]}

机构：

[1] Univ Naples 2, Dept Psychol, Neuropsychol Lab, I-81100 Caserta, Italy

[2] Univ Naples Federico 2, Dept Neurol Sci, Naples, Italy

来源：

CORTEX | 2008年 / 44卷 / 08期

关键词：

tactile agnosia; finger agnosia; tactile object recognition; disconnection syndrome; corpus callosum;

D O I：

10.1016/j.cortex.2008.01.003

中图分类号：

B84 [心理学]; C [社会科学总论]; Q98 [人类学];

学科分类号：

03 ; 0303 ; 030303 ; 04 ; 0402 ;

摘要：

We report a patient with a hemorrhagic lesion encroaching upon the posterior third of the Corpus callosum but sparing the splenium. She showed marked difficulties in recognizing objects and shapes perceived through her left hand, while she could appreciate elementary sensorial features of items tactually presented to the same hand flawlessly. This picture, corresponding to classical descriptions of unilateral associative tactile agnosia, was associated with finger agnosia of the left hand. This very unusual case report can be interpreted as an instance of disconnection syndrome, and allows a discussion of mechanisms involved in tactile object recognition. (C) 2008 Elsevier Masson Srl. All rights reserved.

引用

页码：1030 / 1036

页数：7

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