New Device Tests for Dizziness with Vibrations

New Device Tests for Dizziness with Vibrations
An improvement on the traditional method of diagnosing dizziness reduces the risks of hearing damage associated with the standard test.

One test for the causes of dizziness, called the VEMP test (Vestibular Evoked Myogenic Potentials), relies on loud popping sounds to trigger the muscles in the neck and eyes to contract. However, the volume of the sounds can cause hearing damage as well as patient discomfort.

For a safer and more comfortable alternative, the team from Chalmers University of Technology developed a VEMP device that uses bone conduction to trigger the muscle reflex. The device is placed behind the ear of the patient, where it vibrates at 250 Hz to trigger the reflex at much safer levels than the conventional, high-volume methods.

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