Auditory Brainstem Evoked Potential (ABEP) Test An auditory
brainstem evoked potential (ABEP) test, also known as brainstem
auditory evoked response (BAER) or evoked response audiometry,
is performed to measure the brain wave activity that occurs as a
response to certain sounds. The test detects sensorineural
hearing loss. Electrical activity in the cochlea, a part of the
internal ear, and the auditory pathways in the brain is detected
by this test. This electrical activity is similar to that of the
heart detected by an ECG (electrocardiography). The waveform
produced in response to the stimuli consists of a series of peak
numbers with roman numerals. The initial peak I is produced by
the cochlea and the later peaks are produced by the brain. The
ABEP test is specially designed to make testing of hearing in a
newborn smooth and straightforward. The test results do not
differ,irrespective of the number of babies tested per day. This
test diagnoses nervous system abnormalities and hearing loss,
specifically in