Videoendoscopic Analysis of Laryngeal Function during Laughter
Videoendoscopic Analysis of Laryngeal Function during Laughter
复制标题
笑时喉部功能的视频内窥镜分析
DOI:
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发表时间:
1996
期刊:
影响因子:
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通讯作者:
J. Estill
中科院分区:
文献类型:
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作者:
E. Yanagisawa;M. Citardi;J. Estill
Although commonly encountered in all human cultures, laughter remains poorly understood. In order to examine laryngeal function during laughter, telescopic and fiberscopic videolaryngoscopy was performed on five subjects, who laughed in the different vowels, at various frequencies, and in several voice qualities. During laughter, the vocal folds were found consistently to undergo rhythmic abduction and adduction. At the end of these specific phonation tasks, all subjects were able to gain voluntary control of paramedian vocal fold positioning. This study better defined laryngeal function during laughter. These results have important clinical implications. Voluntary vocal fold positioning has important applications in speech therapy for dysphonias, such as vocal fold nodules, in which the primary cause is vocal fold hyperadduction. Patients suffering from these hyperadductive dysphonias may be able to utilize laughter to correct them.