Journal
BRAIN AND LANGUAGE
Volume 247, Issue -, Pages -Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.bandl.2023.105348
Keywords
Music training experience; Speech normalization; Lexical tone; Time course; Source analysis
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Music training experience may facilitate tonal language speakers in accommodating speech variability in lexical tones, particularly at the cortical level where musicians showed an advantage.
The perception of multiple-speaker speech is challenging. People with music training generally show more robust and faster tone perception. The present study investigated whether music training experience can facilitate tonal language speakers to accommodate speech variability in lexical tones. Native Cantonese musicians and non musicians were asked to identify Cantonese level tones from multiple speakers. Two groups were equally well in using context cues to normalize lexical tone variability at behavioral level. However, the advantage of music training was observed at cortical level. The time-domain ERP analysis suggested that musicians normalized lexical tone variability much earlier than nonmusicians (N1: 70-175 ms vs. P2: 175-280 ms). An exploratory source analysis further revealed that two groups probably relied on different cortical regions to normalize lexical tones. Left BA41 showed stronger involvement in musicians in accommodating tone variability, but right auditory cortex (including BA 41, 42 and 22) activated to a greater extend in nonmusicians.
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