クリックおよび純音刺激による乳幼児の後耳介反応の研究

概要

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Auditory postauricular myogenic responses (P. A. R.) to clicks and tone pips of 500, 1, 000 and 2, 000 Hz were recorded in 30 waking children aged 0 to 5 years to evaluate the PAR as a tool of objective audiometry.The response showed biphasic pattern consisting of a negative wave (N) and a positiveone (P).An application of relatively large-sized active electrodes and a simultaneous recording from the both ears made it easy to detect the responses to clicks, and the potential is more easily recognizable than other auditory electric potentials except for brainstem responses during sleep. More than 90% of the subjects showed definite P. A. R. at 40dB HL of click and 2, 000 Hz tone pip. However, the incidence of the responses to 500 and 1, 000 Hz tone pips were lower than those to click and 2, 000Hz tone pip.The P. A. R. to clicks or pure tone stimuli of 2, 000 Hz is useful for objective screening of hearing in young children.
社団法人日本耳鼻咽喉科学会の論文