title: Study of the acoustic reflex in human beings. I. Dynamic characteristics.
mesh_terms: D000162:Acoustics; D004432:Ear, Middle / Q000502:physiology*; D004594:Electrophysiology; D006801:Humans; D009119:Muscle Contraction; D011312:Pressure; D012018:Reflex; D014432:Tympanic Membrane / Q000502:physiology*