[The sensitization of acoustic stapedius reflex].
The acoustic stapedius reflex, which normally occurs at a hearing level of about 85 dB, can be detected at lower levels by means of sensitization. The technique is to apply reflex-eliciting tone and the facilitating tone stimulation. The high-frequency acoustic stapedius reflex can then be detected in this procedure under low-frequency facilitating. When hearing is normal, significant difference can be demonstrated between conventional and facilitated reflex threshold. There is a great amount of reflex threshold improvement with sensitization. Sensorineural hearing loss allowed small or no reflex threshold change with sensitization.
Yi
X
X
Union Hospital, Tongji Medical University, Wuhan.
D000158:Acoustic Impedance Tests; D000161:Acoustic Stimulation; D000293:Adolescent; D000328:Adult; D001309:Auditory Threshold; D006319:Hearing Loss, Sensorineural / Q000175:diagnosis / Q000503:physiopathology*; D006801:Humans; D008875:Middle Aged; D012022:Reflex, Acoustic / Q000502:physiology*