期刊
CELL
卷 174, 期 1, 页码 21-+出版社
CELL PRESS
DOI: 10.1016/j.cell.2018.05.016
关键词
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资金
- NIH [DP2 OD008627]
- NIH BRAIN Initiative [U01 NS098971-01]
- New York Stem Cell Foundation
- Howard Hughes Medical Institute
- McKnight Foundation
- Shurl and Kay Curci Foundation
- William K. Bowes Foundation
In speech, the highly flexiblemodulation of vocal pitch creates intonation patterns that speakers use to convey linguisticmeaning. Thishuman ability isunique among primates. Here, we used high-density cortical recordings directly from the human brain to determine the encoding of vocal pitch during natural speech. We found neural populations in bilateral dorsal laryngeal motor cortex (dLMC) that selectively encoded produced pitch but not non-laryngeal articulatory movements. This neural population controlled short pitch accents to express prosodic emphasis on a word in a sentence. Other larynx cortical representations controlling voicing and longer pitch phrase contours were found at separate sites. dLMC sites also encoded vocal pitch during a non-speech singing task. Finally, direct focal stimulation of dLMC evoked laryngeal movements and involuntary vocalization, confirming its causal role in feedforward control. Together, these results reveal the neural basis for the voluntary control of vocal pitch in human speech.
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