auditory brain stem response (ABR)

This test evaluates the auditory brain stem (the part of the nerve that carries sound from the ear to the brain) and the brain’s response to sound.  During this test, miniature earphones are placed in the ear and sounds are played. Band-Aid-like electrodes are placed along your baby’s head to detect the brain’s response to the sounds.  If your baby’s brain does not respond to all the sounds, your baby could have hearing trouble.