Kraus N, Cheour M
Department of Communication Sciences, Northwestern University, Evanston, IL 60208, USA.
Audiol Neurootol. 2000 May-Aug;5(3-4):140-50. doi: 10.1159/000013876.
Biologic processes underlying speech sound perception and learning have been addressed using the mismatch negativity (MMN) evoked response. First is a consideration of how the acoustic properties of the signal affect the neural mechanisms and brain regions engaged. Because the MMN differs depending on the acoustic characteristics of the stimuli used to elicit the response, it has been used to probe mechanisms underlying the neural representation of stimuli along the auditory pathway. Second is a consideration of neurophysiologic correlates of speech sound perception and learning. Detailed is a 'behavioral-neurophysiologic, acoustic-phonetic approach', used to link perception with underlying physiologic processes in humans. The focus here is on children and what has been learned about normal maturation of speech sound perception and its disruption in certain children with learning disorders. The last topic is a consideration of central nervous system changes with perceptual learning. This includes long-term experience with one's native language and short-term auditory training in the laboratory. Limitations and future challenges are discussed.
语音感知和学习背后的生物学过程已通过失配负波（MMN）诱发反应进行了研究。首先要考虑的是信号的声学特性如何影响所涉及的神经机制和脑区。由于MMN会因用于引发反应的刺激的声学特征而异，因此它已被用于探究沿听觉通路的刺激的神经表征背后的机制。其次要考虑的是语音感知和学习的神经生理学相关性。详细介绍了一种“行为-神经生理学、声学-语音学方法”，用于将人类的感知与潜在的生理过程联系起来。这里的重点是儿童以及关于语音感知的正常成熟及其在某些学习障碍儿童中的破坏情况所学到的知识。最后一个主题是考虑中枢神经系统随感知学习的变化。这包括使用母语的长期经验和实验室中的短期听觉训练。还讨论了局限性和未来挑战。
