Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.
nerve deaf·ness, neural deafness
former terms for sensorineural hearing loss.
nerve deafnessHearing loss resulting from damage to the transducers in the inner ear (Organ of Corti) or to the acoustic nerve connections to the brain, rather than from mechanical interference with the transmission of sound vibrations to the inner ear (conductive deafness).
lack or loss, complete or partial, of the sense of hearing.
sound vibrations are interrupted in the outer or middle ear and do not reach the inner ear and its nerve endings.
infrequent in dogs and cats, not recorded in other species. In most cases is due to cochlear duct degeneration. See also inherited deafness (below).
that due to disease of the cortical centers of the cerebrum.
occurs in some blue-eyed white cats and in some dog breeds; particularly common in the Dalmatian. In some cases it is associated with coat coloration, e.g. white Bull terriers, merle collies and Old English sheepdogs.
due to degeneration of the acoustic sensory organ. Most common in dogs at an early age and associated with incomplete pigmentation of the haircoat and the uvea, in animals with a white or merle coat color. Occurs also in mink, cats and mice.
due to damage of the inner ear nerve endings, the cochlear portion of the eighth cranial nerve, the vestibulocochlear nerve, or the cortical hearing center. See also nerve deafness (above).
overdosing with aminoglycoside antibiotics causes deafness.
conductive hearing loss.