Objective audiometry (ASSR)

One of the newer tests used to test hearing is called the Continuous Modulated Tone Response (ASSR). This test is also called “objective audiometry” because it allows you to objectively (without the participation of the patient) evaluate the state of hearing function. The test is performed while the patient is at rest. At this time, the electrical activity of the auditory nerve, caused by a constant acoustic modulated tone, is recorded.

One benefit of the test is that the ASSR tests a child’s hearing for specific frequencies, allowing the otolaryngologist to predict hearing levels over a wide frequency range of sounds with increased accuracy.

    In addition, the ASSR test does not take long (hearing can be tested at 4 of the selected frequencies and in both ears at the same time) and has a wider range of loudness levels than ABR, which allows you to distinguish between severe and mild hearing problems. It should be noted, however, that it is difficult to distinguish between mild hearing loss and normal hearing, so there is potential for misdiagnosis for children with mild hearing loss.