期刊
NEUROSCIENCE LETTERS
卷 287, 期 2, 页码 156-160出版社
ELSEVIER SCI IRELAND LTD
DOI: 10.1016/S0304-3940(00)01143-5
关键词
language; conduction aphasia; functional magnetic resonance image; speech production
资金
- NCRR NIH HHS [RR08079] Funding Source: Medline
- NIDCD NIH HHS [DC03681] Funding Source: Medline
Conduction aphasia, characterized by good auditory comprehension and fluent but disordered speech production, is classically viewed as a disconnection syndrome. We review recent evidence which suggests that at least one form of conduction aphasia results from damage to cortical fields in the left posterior superior temporal gyrus which participate not only in speech perception, but also in phonemic aspects of speech production. As a test of this hypothesis, we carried out a 4T functional magnetic resonance imaging study in which subjects named visually presented objects sub-vocally. Group-based analyses showed that a majority of participants showed activation in two regions on the dorsal portion of the left posterior superior temporal gyrus. (C) 2000 Elsevier Science Ireland Ltd. All rights reserved.
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