Influence of age and hearing loss on the latency shifts of the auditory brainstem response as a result of increased stimulus rate.
Latency shifts of auditory brainstem response waves, I, III and V were studied as a function of increasing the stimulus repetition rate from 9 to 21, 42 and 63/s. There appears to be an accumulative retardation of the successive waves when faster click rates are administered that yield a prolongation of the interpeak intervals I-III and III-V. The effect on wave V and on the interpeak interval III-V seems to intensify with age (especially over 55 years). In ears with a flat sensorineural hearing loss, the adaptation of waves III and V is found to be somewhat smaller than in normal ears at the same intensity in dB SPL.
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D000161:Acoustic Stimulation; D000222:Adaptation, Physiological; D000328:Adult; D000367:Age Factors; D000368:Aged; D001933:Brain Stem / Q000502:physiology; D005072:Evoked Potentials, Auditory; D006319:Hearing Loss, Sensorineural / Q000503:physiopathology*; D006801:Humans; D008875:Middle Aged; D011930:Reaction Time / Q000502:physiology