Andreatta R D, Barlow S M, Finan D S
Department of Speech and Hearing Sciences, Indiana University, Bloomington 47405.
Brain Res. 1994 May 16;646(1):175-9. doi: 10.1016/0006-8993(94)90074-4.
Mechanically evoked reflex activity in the superior and inferior segments of the orbicularis oris muscle was sampled from three normal females using a specially designed linear motor operating under force feedback. Mechanical inputs delivered to the left upper lip during a ramp-and-hold task produced a composite reflex response characterized by phases of excitation and suppression at the homonymous muscle recording site. The modulation of the evoked composite perioral reflex was found to be dependent upon the rate and phase of force recruitment. The organization of the composite perioral reflex response is discussed in relation to speech motor control and load compensatory mechanisms.
使用在力反馈下运行的特殊设计的线性电机，从三名正常女性中采集口轮匝肌上、下节段的机械诱发反射活动。在斜坡-保持任务期间施加到左上唇的机械输入在同名肌肉记录部位产生了以兴奋和抑制阶段为特征的复合反射反应。发现诱发的复合口周反射的调制取决于力募集的速率和阶段。结合言语运动控制和负荷补偿机制讨论了复合口周反射反应的组织。
