期刊
NEUROSCIENCE
卷 170, 期 1, 页码 223-231出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.neuroscience.2010.06.077
关键词
mismatch negativity (MMN); categorical perception; lexical tones; Mandarin Chinese
资金
- Program for Changjiang Scholars and Innovative Research Team at Beijing Normal University
- Natural Science Foundation of Beijing [7092051]
- National Science Foundation of USA [0642586]
- University of Minnesota
- Direct For Social, Behav & Economic Scie
- Division Of Behavioral and Cognitive Sci [0642586] Funding Source: National Science Foundation
The present study investigated the neurophysiological correlates of categorical perception of Chinese lexical tones in Mandarin Chinese. Relative to standard stimuli, both within- and across-category deviants elicited mismatch negativity (MMN) in bilateral frontal-central recording sites. The MMN elicited in the right sites was marginally larger than in the left sites, which reflects the role of the right hemisphere in acoustic processing. At the same time, relative to within-category deviants, the across-category deviants elicited larger MMN in the left recording sites, reflecting the long-term phonemic traces of lexical tones. These results provide strong neurophysiological evidence in support of categorical perception of lexical tones in Chinese. More important, they demonstrate that acoustic and phonological information is processed in parallel within the MMN time window for the perception of lexical tones. Finally, homologous nonspeech stimuli elicited similar MMN patterns, indicating that lexical tone knowledge influences the perception of nonspeech signals. (C) 2010 IBRO. Published by Elsevier Ltd. All rights reserved.
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