中耳肌肉收缩对特定纯音听觉阈值的影响。

The influence of middle-ear muscle contraction on auditory threshold for selected pure tones.

作者信息

Morgan D E, Dirks D D, Kamm C

出版信息

J Acoust Soc Am. 1978 Jun;63(6):1896-903. doi: 10.1121/1.381904.

DOI:10.1121/1.381904

Abstract

The influence of middle-ear muscle (MEM) contraction on auditory threshold has been measured for pure tones of 0.25, 0.5, and 1.5 kHz. The reflex-activating signal was a 3-kHz pure tone. Signal paradigms were chosen to reduce or eliminate the effects of binaural loudness summation, contralateral direct masking, and contralateral remote and backward masking effects, and to maximize the influence of MEM contraction. Results indicate that under no condition was behavioral threshold affected by the MEM contraction induced using a pure-tone stimulus of 3 kHz, 105 dB SPL.

摘要

已针对0.25、0.5和1.5千赫的纯音测量了中耳肌肉（MEM）收缩对听觉阈值的影响。反射激活信号为3千赫的纯音。选择信号范式以减少或消除双耳响度总和、对侧直接掩蔽、对侧远程和反向掩蔽效应的影响，并使MEM收缩的影响最大化。结果表明，在任何情况下，行为阈值都不会受到使用3千赫、105分贝声压级的纯音刺激诱发的MEM收缩的影响。