[Clinical and experimental study on perceptual deafness].
D000293:Adolescent; D000328:Adult; D000818:Animals; D002415:Cats; D002648:Child; D003638:Deafness / Q000175:diagnosis*; D004594:Electrophysiology; D006309:Hearing; D006320:Hearing Tests; D006801:Humans; D008875:Middle Aged