Slegel D E, Benson K L, Zarcone V P
Department of Psychiatry, University of Texas Southwestern Medical Center, Dallas 75235.
Sleep. 1992 Dec;15(6):567-70. doi: 10.1093/sleep/15.6.567.
In past studies of middle ear muscle activity (MEMA) in sleep, one of two methods of recording has been used: an acoustic impedance bridge (AIB) or a miniaturized pressure transducer (MPT). A low-cost and less fragile piezoresistive pressure transducer was tested to determine its practicality in recording MEMA during sleep in humans. A specialized ear mold accommodating both types of pressure transducer was custom-fitted for six subjects. The sleep of each subject was analyzed epoch by epoch for one night to determine comparability of the two transducers. In no case did either transducer indicate a MEMA without confirmation by the other. It is recommended that this type of transducer would be practical for researchers interested in recording MEMA in sleep.
在以往关于睡眠中中耳肌肉活动（MEMA）的研究中，使用了两种记录方法中的一种：声阻抗桥（AIB）或小型压力传感器（MPT）。测试了一种低成本且不易损坏的压阻式压力传感器，以确定其在记录人类睡眠期间MEMA方面的实用性。为六名受试者定制了一种可容纳两种压力传感器的专用耳模。对每名受试者的睡眠进行逐段分析，持续一个晚上，以确定两种传感器的可比性。在任何情况下，没有一种传感器能在未得到另一种传感器确认的情况下显示出MEMA。建议这种类型的传感器对于有兴趣记录睡眠中MEMA的研究人员来说是实用的。
