Berke G S, Moore D M, Gerratt B R, Hanson D G, Bell T S, Natividad M
Division of Head and Neck Surgery, UCLA School of Medicine.
Laryngoscope. 1989 Sep;99(9):977-82. doi: 10.1288/00005537-198909000-00013.
The present investigation was designed to examine the effect of variation in recurrent laryngeal nerve stimulation (RLNS) on vocal fold vibration. Photoglottography (PGG), electroglottography (EGG), and subglottic pressure (Psub) were measured in seven mongrel dogs using an in vivo canine model of phonation. The PGG, EGG, and Psub signals were examined at three fundamental frequencies (F0) (100 Hz, 130 Hz, and 160 Hz) for RLNS, using a constant rate of air flow. Increasing RLNS, which caused activation of the intrinsic laryngeal muscles, produced a modest increase in F0, a marked increase in Psub, no change in the open quotient (OQ), and an increase in the closing quotient (CQ). Phase quotient (Qp), which describes the interval between opening of the lower and upper fold margins, decreased with increasing RLNS.
本研究旨在探讨喉返神经刺激（RLNS）变化对声带振动的影响。使用体内犬发声模型，对7只杂种犬进行了光声门图（PGG）、电声门图（EGG）和声门下压力（Psub）测量。在恒定气流速率下，针对RLNS在三个基频（F0）（100Hz、130Hz和160Hz）下检测PGG、EGG和Psub信号。增加RLNS会导致喉内肌激活，使F0适度增加，Psub显著增加，开放商（OQ）无变化，闭合商（CQ）增加。描述上下声带边缘开口之间间隔的相位商（Qp）随RLNS增加而降低。
