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ABR focuses only on the function of the inner ear, the acoustic (hearing) nerve, and part of the brain pathways that are associated with hearing.
How ABR test is performed?
- Electrodes are placed on the head and certain tones or clicking sounds are made.
- The electrodes measure nerve signals in the brain when it reacts to the sounds.
- Because this test does not rely on a person’s response behavior, the person being tested can be sound asleep during the test.