A Comparison Between Middle-Ear Muscle Reflex Thresholds For Bone- And Air-Conducted Pure Tones

Abstract
The middle-ear muscle reflex threshold for bone-conducted pure tones (250–6 000 Hz) was compared with the corresponding threshold for air-conducted tones. In normal-hearing subjects a significant difference (5–25 dB) was found. Possible causes for this discrepancy were studied.