2012年6月
Multichannel fNIRS assessment of overt and covert confrontation naming
BRAIN AND LANGUAGE
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- 巻
- 121
- 号
- 3
- 開始ページ
- 185
- 終了ページ
- 193
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1016/j.bandl.2012.02.001
- 出版者・発行元
- ACADEMIC PRESS INC ELSEVIER SCIENCE
Confrontation naming tasks assess cognitive processes involved in the main stage of word production. However, in fMRI, the occurrence of movement artifacts necessitates the use of covert paradigms, which has limited clinical applications. Thus, we explored the feasibility of adopting multichannel functional near-infrared spectroscopy (fNIRS) to assess language function during covert and overt naming tasks. Thirty right-handed, healthy adult volunteers underwent both naming tasks and cortical hemodynamics measurement using fNIRS. The overt naming task recruited the classical left-hemisphere language areas (left inferior frontal, superior and middle temporal, precentral, and postcentral gyri) exemplified by an increase in the oxy-Hb signal. Activations were bilateral in the middle and superior temporal gyri. However, the covert naming task recruited activation only in the left-middle temporal gyrus. The activation patterns reflected a major part of the functional network for overt word production, suggesting the clinical importance of fNIRS in the diagnosis of aphasic patients. (C) 2012 Elsevier Inc. All rights reserved.
- リンク情報
- ID情報
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- DOI : 10.1016/j.bandl.2012.02.001
- ISSN : 0093-934X
- eISSN : 1090-2155
- PubMed ID : 22429907
- Web of Science ID : WOS:000304339700001