PHYSIOLOGICAL ASSESSMENT OF SPEECH AND VOICE PRODUCTION OF ADULTS WITH HEARING-LOSS
PHYSIOLOGICAL ASSESSMENT OF SPEECH AND VOICE PRODUCTION OF ADULTS WITH HEARING-LOSS
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DOI：
10.1044/jshr.3703.510
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发表时间：
1994-06-01
期刊：
影响因子：
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通讯作者：
SCHULTE, L
中科院分区：
文献类型：
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作者：
HIGGINS, MB;CARNEY, AE;SCHULTE, L
本研究的目的是使用综合的生理学方法研究听力损失对发声、咽喉和发音功能的影响。电声门图（EGG），鼻/口气流，口内气压信号同时记录从成年人受损和正常的听力，因为他们产生的音节和不同的生理困难的话。中度至重度听力损失的个体具有良好至优秀的口语沟通能力。口内压，鼻气流，唇，软腭，声带发音的持续时间，估计声门下压，平均发声气流，基频和EGG外展商进行了比较两个受试者组之间。来自听力损失受试者的数据也在辅助和无辅助条件下进行了比较，以研究听觉反馈对言语运动控制的影响。与听力正常者相比，听力损失者的口内压、声门下压、喉阻力和基频均显著升高。受试者间存在显著变异性。所有严重听力损失的个体都至少有一项语音/声音生理学指标超出正常范围，大多数受试者表现出独特的异常行为集群。异常行为在发声系统中比发音系统或咽喉系统更明显，并且通常与声带过度收缩一致。有证据表明，从个人数据声带姿势影响发音时间。研究结果并不支持这样的观点，即当对咽喉和发声机制的运动需求增加时，具有良好口头交流能力的中度至重度听力损失的成年人的言语产生技能会恶化。虽然没有显着差异，发现之间的辅助和unaided条件，10名受试者中有7人表现出相同的方向的变化声门下压，口内压，鼻气流，唇和声带发音的持续时间。我们的结论是，生理评估提供了重要的信息与中度至极重度听力损失的个人的语音/声音产生能力，是一个有价值的除了标准的评估电池。
The purpose of this investigation was to study the impact of hearing loss on phonatory, velopharyngeal, and articulatory functioning using a comprehensive physiological approach. Electroglottograph (EGG), nasal/oral air flow, and intraoral air pressure signals were recorded simultaneously from adults with impaired and normal hearing as they produced syllables and words of varying physiological difficulty. The individuals with moderate-to-profound hearing loss had good to excellent oral communication skills. Intraoral pressure, nasal air flow, durations of lip, velum, and vocal fold articulations, estimated subglottal pressure, mean phonatory air flow, fundamental frequency, and EGG abduction quotient were compared between the two subject groups. Data from the subjects with hearing loss also were compared across aided and unaided conditions to investigate the influence of auditory feedback on speech motor control. The speakers with hearing loss had significantly higher intraoral pressures, subglottal pressures, laryngeal resistances, and fundamental frequencies than those with normal hearing. There was notable between-subject variability. All of the individuals with profound hearing loss had at least one speech/voice physiology measure that fell outside of the normal range, and most of the subjects demonstrated unique clusters of abnormal behaviors. Abnormal behaviors were more evident in the phonatory than articulatory or velopharyngeal systems and were generally consistent with vocal fold hyperconstriction. There was evidence from individual data that vocal fold posturing influenced articulatory timing. The results did not support the idea that the speech production skills of adults with moderate-to-profound hearing loss who are good oral communicators deteriorate when there are increased motoric demands on the velopharyngeal and phonatory mechanism. Although no significant differences were found between the aided and unaided conditions, 7 of 10 subjects showed the same direction of change for subglottal pressure, intraoral pressure, nasal air flow, and the duration of lip and vocal fold articulations. We conclude that physiological assessments provide important information about the speech/voice production abilities of individuals with moderate-to-profound hearing loss and are a valuable addition to standard assessment batteries.