Saito Miki, Imagawa Hiroshi, Sakakibara Ken-Ichi, Tayama Niro, Nibu Ken-Ichi, Amatsu Mutsuo
Department of Otolaryngology-Head and Neck Surgery, Kobe University Graduate School of Medicine, Kobe.
Acta Otolaryngol. 2006 May;126(5):521-5. doi: 10.1080/00016480500415613.
Our previous findings have indicated that the thyropharyngeal muscles form a retropharyngeal prominence during alaryngeal phonation via the TE fistula. This prominence forms a so-called 'neoglottis', which is thought to function as the vibratory source. To better understand the mechanism of TE phonation, we analyzed the vibration of the neoglottis using electroglottography (EGG) and a high-speed digital imaging system.
Two volunteers who use TE phonation for their daily speech communication were subjected to this study. The vibrations of the neoglottis were recorded simultaneously as EGG and high-speed imaging with acoustic signals.
The vibrations of the neoglottis, recorded by means of high-speed digital imaging, were exactly synchronized with the waveforms of the acoustic signals and EGG.
These results further confirm the neoglottis as the source of vibration during tracheoesophageal (TE) phonation.
我们之前的研究结果表明,喉咽肌在通过气管食管瘘进行无喉发声时会形成咽后隆起。该隆起形成了所谓的“新声门”,被认为是振动源。为了更好地理解气管食管发声的机制,我们使用电声门图(EGG)和高速数字成像系统分析了新声门的振动。
两名日常使用气管食管发声进行言语交流的志愿者参与了本研究。新声门的振动通过EGG和高速成像与声学信号同时记录。
通过高速数字成像记录的新声门振动与声学信号和EGG的波形完全同步。
这些结果进一步证实了新声门是气管食管(TE)发声时的振动源。