In presbyacusis (hearing loss) or deafness, deprivation of acoustic input may result in abnormal cross-modal plastic reorganization.— Naturejobs - All Jobs
In addition, calculation of Robinson-Sutton's equations confirmed that in a man of 55 years, age induced hearing loss (presbyacusis) could not account for the loss at 4-6 kHz in his right ear, and that it must have been due to noise exposure.— Medlogs - Recent stories

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