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目的为研究声区及频率和声门闭合形态的关系。方法对16例(64个声样)26～48岁健康人分别以低,高频胸声及低,高频假声发持续性元音“i”时进行纤维喉镜声门图像观察。结果 (1)大多数受试者无论发胸声还是假声时,声门均不能完全闭合,提示声门闭合不全可以是正常发声时一种声门状态。(2)假声时声门闭合程度明显低于胸声,表明声门闭合受声区变化的影响。声门形态包括六类,与声区变化无明显关系。(3)同一声区频率改变对声门闭合及形态均无影响。(4)声门闭合程度无明显性别差异,但声门形态与性别有一定关系。结论声区及频率与声门闭合之间的关系,为正常发声生理研究及临床病理声门闭合的诊断提供了实验依据。
The purpose of the study for the relationship between sound zone and frequency and glottis closed morphology. Methods A total of 16 healthy subjects (64 sound samples) aged from 26 to 48 years were examined by fiber laryngoscopy in low and high frequency chest and low and high frequency fallacious hair vowels . Results (1) Most subjects could not close the glottis completely regardless of chest or falsetto, suggesting that glottal insufficiency may be a glottal state during normal vocalization. (2) The degree of glottis closure was significantly lower than that of the thorax during the falsetto, indicating that the glottis closure was affected by the change of sound area. There are six types of glottis morphology, and no significant relationship between changes in the sound area. (3) The same sound zone frequency changes have no effect on the glottis closure and morphology. (4) No significant gender differences in the degree of glottis closure, but the glottis morphology and gender have a certain relationship. Conclusions The relationship between acoustic region and frequency and glottic closure provides experimental evidence for normal vocal physiology and clinicopathologic glottic closure.