Tye-Murray N, Folkins J W
Department of Otolaryngology-Head and Neck Surgery, University of Iowa Hospitals and Clinics, Iowa City 52242.
J Acoust Soc Am. 1990 Jun;87(6):2675-83. doi: 10.1121/1.399059.
This investigation determined whether prelingually deaf talkers could correctly produce stressed and unstressed syllables across known changes in stress patterning and phonetic composition. Three deaf and three hearing adults spoke sets of homogeneous syllable strings with stress patterns that they could tap successfully with a finger. Strain gauge transduction of lower lip and jaw movement indicated that both deaf and hearing subjects produced different displacements and durations for the stressed and unstressed syllables, regardless of the stress pattern. Jaw movement did not become more variable with changes in phonetic composition of the syllables. The results show no evidence that motoric abilities (as assessed in lip and jaw movements) limit deaf talkers in producing desired stress patterns.
本研究确定了语前聋的说话者是否能够在已知的重音模式和语音构成变化中正确发出重读音节和非重读音节。三名聋人和三名听力正常的成年人说出了几组具有重音模式的同质音节串，他们能用手指成功打出这些重音模式。下唇和下颌运动的应变仪转换表明，无论重音模式如何，聋人和听力正常的受试者在重读音节和非重读音节上都产生了不同的位移和时长。随着音节语音构成的变化，下颌运动并没有变得更具变化性。结果表明，没有证据表明运动能力（通过唇和下颌运动评估）会限制聋人说话者产生所需的重音模式。
