[Impedancemetric study of the variations of the auditory reflex in man as a function of age (author's transl)].

The author has used the electroacoustic impedance bridge to study the variation of the auditory reflex in normally hearing subjects as a function of age. The parameters tested were essentially the rise time and the recovery time as well as the amplitude of the reflex response at frequencies of 1 000 and 2 000 Hz after ipsilateral and contralateral stimulation. The influence of age was found to be significant for the recovery time and the amplitude of response. The relationship between the rise time and the recovery time was found to be constant. These standards established as a function of age will facilitate the differentiation of normal from pathological responses.