Measurements of the early middle response.
D000293:Adolescent; D000328:Adult; D001300:Audiometry, Evoked Response; D001933:Brain Stem / Q000502:physiology; D004432:Ear, Middle / Q000502:physiology; D005072:Evoked Potentials, Auditory; D006801:Humans; D010470:Perceptual Masking; D011930:Reaction Time