Movement goals and feedback and feedforward control mechanisms in speech production

被引:139
作者
Perkell, Joseph S. [1 ]
机构
[1] MIT, Speech Commun Croup, Elect Res Lab, Cambridge, MA 02139 USA
基金
美国国家卫生研究院;
关键词
Speech production; Speech perception; Speech motor control; Sensory goals; Feedback control; Feedforward control; Phonemic goals; R-VERTICAL-BAR; NEURAL-NETWORK MODEL; AUDITORY-FEEDBACK; SENSORIMOTOR ADAPTATION; MIRROR NEURONS; NORMAL-HEARING; MOTOR CONTROL; TERM CHANGES; VOCAL-TRACT; BITE-BLOCK;
D O I
10.1016/j.jneuroling.2010.02.011
中图分类号
H0 [语言学];
学科分类号
030303 ; 0501 ; 050102 ;
摘要
Studies of speech motor control are described that support a theoretical framework in which fundamental control variables for phonemic movements are multi-dimensional regions in auditory and somatosensory spaces. Auditory feedback is used to acquire and maintain auditory goals and in the development and function of feedback and feedforward control mechanisms. Several lines of evidence support the idea that speakers with more acute sensory discrimination acquire more distinct goal regions and therefore produce speech sounds with greater contrast. Feedback modification findings indicate that fluently produced sound sequences are encoded as feedforward commands, and feedback control serves to correct mismatches between expected and produced sensory consequences. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码:382 / 407
页数:26
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