Auditory Brainstem Response (ABR)
ABR is an electrophysiological measure of the auditory nervous system’s response to sound. A sound is presented to the ear via earphones or probe tips and electrodes record the response as the nerve impulse travels from the cochlea through the auditory nerve to the brainstem. ABR is typically performed by an audiologist as part of a diagnostic evaluation and is used with children who cannot complete a typical hearing screening. The ABR is also used if symptoms might be due to hearing loss in the brain or in a brain pathway.