Effect of Age and Hearing Loss on Auditory Processing Skills.

The present study aimed to evaluate the effect of age and hearing loss on auditory processing abilities. For this purpose, auditory processing abilities were compared among young and older adults with normal hearing sensitivity and older adults with and without hearing loss. The study comprised 20 normal-hearing young adults (18-25 years), 20 older adults with normal hearing sensitivity (50-70 years), and 20 older adults with mild to moderate sensorineural hearing impairment (50-70 years). All 60 participants underwent gap detection (GDT), dichotic consonant-vowe (DCV)l, speech in noise (SPIN), duration pattern (DPT), and working memory (forward and backward span) tests in a sound treated test room. Results showed that young normal-hearing adults performed significantly better than normal-hearing older adults in SPIN, GDT, DCV, working memory, and DPT. Futher, normal-hearing older individuals performed better than older individuals with hearing impairment on all the auditory processing tests except on the forward span test and DPT. Auditory processing abilities deteriorate with age and hearing loss also has a pronounced effect on most auditory processing abilities.