Impedance measurements probe—tone intensity and middle—ear reflexes
- 1 January 1970
- journal article
- research article
- Published by Taylor & Francis in Acta Oto-Laryngologica
- Vol. 69 (sup263) , 205-207
- https://doi.org/10.3109/00016487009131561
Abstract
Eleven normal subjects were examined by the impedance method with respect to the influence of probe—tone intensity on the middle ear muscle reflexes. If the probe tone is reduced from 70 dB sensation level to 60 dB SL, the threshold tends to become higher and the reflexes are smaller. This holds for reflex—eliciting stimuli up to around 95—100 dB. With stronger stimuli, the reflexes become stronger with weak probe tones. Thus, exact knowledge about probe—tone intensity is important for accurate evaluation of the middle—ear muscle reflexes by the impedance method.Keywords
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