The influence of sound stimulus parameters on the acoustic reflex waveform.
The transient increase in admittance seen at the beginning of the acoustic reflex response in man was investigated with a view to reaching a better understanding of its possible mechanisms. The sound stimulus intensity, its duration and its off-time were varied to investigate their effects on the morphology of the admittance waveform. The results found suggest that the transient increase may not be due to a temporary partial decoupling of the ossicular chain during the initial stages of stapedial contraction, but rather that it may be caused by a slight improvement in the coupling between the middle ear components.
Freeman
S
S
Department of Physiology, Hebrew University-Hadassah Medical School, Jerusalem, Israel.
Sohmer
H
H
D000161:Acoustic Stimulation / Q000379:methods*; D000328:Adult; D004432:Ear, Middle / Q000502:physiology*; D006801:Humans; D009132:Muscles / Q000502:physiology*; D012022:Reflex, Acoustic / Q000502:physiology*; D013198:Stapedius / Q000502:physiology*