Time-dependent neural processing of auditory feedback during voice pitch error detection.
Time-dependent neural processing of auditory feedback during voice pitch error detection.
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DOI：
10.1162/jocn.2010.21447
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发表时间：
2011-05
影响因子：
3.2
通讯作者：
Larson CR
中科院分区：
文献类型：
--
作者：
Behroozmand R;Liu H;Larson CR
与对类似但外部产生的刺激的反应相比，对自我产生的运动行为的感觉结果的神经反应受到抑制。先前在躯体感觉和听觉系统中的研究表明，运动引起的感觉机制的抑制对运动行为和刺激开始之间的延迟敏感。本研究探讨了自发发声听觉反馈的时间依赖性神经加工。在主动发声和被动听相同发声的回放过程中，记录了对正常和音高变化的语音听觉反馈的ERP。音高变化的刺激被传递到受试者的听觉反馈后，一个随机选择的时间延迟之间的声音开始和刺激呈现。结果表明，延迟反馈扰动的神经反应显着大于那些在发声开始时发生的音高变化刺激的反应。与被动听回放相比，主动发声仅在非零延迟时增强神经对反馈改变的反应。这些结果表明，听觉反馈处理的神经机制是敏感的发声运动命令和传入的听觉反馈之间的时间。听觉反馈的时间依赖性神经处理可能是音频-语音整合系统的重要特征，其有助于通过语音错误检测和校正来改善语音结构的基于反馈的监测和控制。
The neural responses to sensory consequences of a self-produced motor act are suppressed compared with those in response to a similar but externally generated stimulus. Previous studies in the somatosensory and auditory systems have shown that the motor-induced suppression of the sensory mechanisms is sensitive to delays between the motor act and the onset of the stimulus. The present study investigated time-dependent neural processing of auditory feedback in response to self-produced vocalizations. ERPs were recorded in response to normal and pitch-shifted voice auditory feedback during active vocalization and passive listening to the playback of the same vocalizations. The pitch-shifted stimulus was delivered to the subjects’ auditory feedback after a randomly chosen time delay between the vocal onset and the stimulus presentation. Results showed that the neural responses to delayed feedback perturbations were significantly larger than those in response to the pitch-shifted stimulus occurring at vocal onset. Active vocalization was shown to enhance neural responsiveness to feedback alterations only for nonzero delays compared with passive listening to the playback. These findings indicated that the neural mechanisms of auditory feedback processing are sensitive to timing between the vocal motor commands and the incoming auditory feedback. Time-dependent neural processing of auditory feedback may be an important feature of the audio-vocal integration system that helps to improve the feedback-based monitoring and control of voice structure through vocal error detection and correction.
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DOI：
10.1121/1.1931747
发表时间：
2005-07-01
期刊：
ACOUSTICS RESEARCH LETTERS ONLINE-ARLO
影响因子：
--
作者：
Heinks-Maldonaldo, TH;Houde, JF
通讯作者：
Houde, JF
影响因子：
2.4
作者：
Burnett, TA;Freedland, MB;Hain, TC
通讯作者：
Hain, TC
影响因子：
17.7
作者：
Ford, Judith M.;Roach, Brian J.;Mathalon, Daniel H.
通讯作者：
Mathalon, Daniel H.
影响因子：
3.7
作者：
Eliades, SJ;Wang, XQ
通讯作者：
Wang, XQ
影响因子：
1.7
作者：
Heinks-Maldonado, Theda H.;Nagarajan, Srikantan S.;Houde, John F.
通讯作者：
Houde, John F.