Brainstem Evoked Response Audiometry (BERA) 

Should hearing impairment be suspected in the auditory nerve or even in deeper areas of the brain we will recommend BERA. For brain stem audiometry, an acoustic stimulus is supplied. Head-mounted electrodes measure the electrical impulses of the auditory nerve. Abnormalities shown give an indirect indication of a possible disease of the auditory pathways in the brain. This test also serves as evidence of other neurological diseases, that may result in a loss of hearing.