central deafness

central deafness

n.

The loss or impairment of hearing caused by disease or a defect in the auditory system of the brain.

---

central deafness.

See central auditory processing disorder.

---

deafness (def´nes),

n a condition characterized by a partial or complete loss of hearing.

deafness, central,

n impaired hearing caused by interference with cerebral auditory pathways or in the auditory centers in the brain (e.g., cerebrovascular accidents and other degenerative brain diseases). Hearing aids are of little benefit.

deafness, conduction

n See deafness, transmission.

deafness, nerve,

n impaired hearing caused by pathologic conditions in the auditory nerve or the hair cells of the organ of Corti in the inner ear (e.g., high-tone deafness, which comes with age; damage to the organ of Corti by noise; or a tumor of an auditory nerve). Hearing aids are usually of little benefit.

deafness, transmission (conduction deafness),

n impaired hearing caused by interference with passage of sound waves through the external ear (e.g., interference caused by wax) or middle ear (e.g., interference caused by otitis media, aerotitis media, or otosclerosis). May be characterized by greater interference with hearing of low tones. Hearing aids that amplify may be helpful.