Effects of bite blocks and hearing status on vowel production.
Effects of bite blocks and hearing status on vowel production.
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DOI：
10.1121/1.2001527
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发表时间：
2005-09
期刊：
影响因子：
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通讯作者：
H. Lane;M. Denny;F. Guenther;M. Matthies;Lucie Ménard;J. Perkell;E. Stockmann;M. Tiede;Jennell Vic;M. Zandipour
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文献类型：
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作者：
H. Lane;M. Denny;F. Guenther;M. Matthies;Lucie Ménard;J. Perkell;E. Stockmann;M. Tiede;Jennell Vic;M. Zandipour
本研究旨在探讨听觉状况与咬合块对母音产生的影响。听力正常的控制和语后聋成年人阅读/hVd/音节的启发列表，有和没有咬块和听觉反馈。聋人参与者的听觉反馈是由人工耳蜗提供的，并通过关闭他们的植入麦克风来中断。在提供假体之前、一个月和一年后进行记录。长期缺乏听觉反馈与元音标记的高度分散有关，通过插入咬合块进一步膨胀。用假体恢复一些听力减少了分散。与对照组相比，聋人的元音空间缩小了。由于扬声器的不完全补偿，插入咬合块进一步降低了它们。一年的假体使用增加元音对比度与反馈在启发。这些研究结果支持的推论，语音生产模型必须分配一个角色，听觉反馈在错误的前馈命令为后续发音手势的校正。
This study explores the effects of hearing status and bite blocks on vowel production. Normal-hearing controls and postlingually deaf adults read elicitation lists of /hVd/ syllables with and without bite blocks and auditory feedback. Deaf participants' auditory feedback was provided by a cochlear prosthesis and interrupted by switching off their implant microphones. Recording sessions were held before prosthesis was provided and one month and one year after. Long-term absence of auditory feedback was associated with heightened dispersion of vowel tokens, which was inflated further by inserting bite blocks. The restoration of some hearing with prosthesis reduced dispersion. Deaf speakers' vowel spaces were reduced in size compared to controls. Insertion of bite blocks reduced them further because of the speakers' incomplete compensation. A year of prosthesis use increased vowel contrast with feedback during elicitation. These findings support the inference that models of speech production must assign a role to auditory feedback in error-based correction of feedforward commands for subsequent articulatory gestures.