Camicas M
O.R.L., Marigot, Saint-Martin, Antilles Françaises.
Rev Laryngol Otol Rhinol (Bord). 1992;113(4):355-8.
The on-off effect is a particular form of the stapedial reflex. It is presented as a double positive deflection appearing when the stimulus starts and stops. This type of reflex is very frequent in beginning otospongiosis. The mixed theory assimilates the annual ligament of the stirrup to an elastic pin which obeys the physical laws of a spring. Otospongiosis produces a shortened sement and thickening of the annular ligament, with an increase in its rigidity, responsible for deafness of the low sounds at the beginning of the disease. The acoustic and mechanical theory enables a clear explanation of the lines supplied by the different types of instruments (220 Hz or 600 Hz). It also specifies the role of the annular ligament in various hearing pathologies.
开关效应是镫骨肌反射的一种特殊形式。它表现为刺激开始和停止时出现的双正向偏转。这种反射类型在耳海绵化初期非常常见。混合理论将镫骨的环状韧带比作一个弹性销，它遵循弹簧的物理定律。耳海绵化会导致镫骨短脚缩短和环状韧带增厚，其硬度增加，这是疾病初期低频听力丧失的原因。声学和力学理论能够清晰地解释不同类型仪器（220赫兹或600赫兹）所提供的曲线。它还明确了环状韧带在各种听力病理中的作用。
