In Weber test, the vibration is felt louder in one ear or the other.

In Weber test, the vibration is felt louder in one ear or the other.

• A. Lateralization to one ear
• B. Equally in both ears
• C. Ear canal blockage
• D. No vibration heard

Answer: (A)

In the Weber test, the key idea is sound lateralization: you place a tuning fork at the midline and see which ear perceives the vibration louder. In a normal person, it should feel equal in both ears. If one ear has conductive hearing loss, the bone-conduction signal is relatively stronger in that ear, so the vibration is perceived louder there. If one ear has sensorineural loss, the sound is perceived louder in the opposite, better-hearing ear. So the observation that the vibration is felt louder in one ear or the other is exactly describing lateralization, which is how this test identifies unilateral hearing differences.

In the Weber test, the key idea is sound lateralization: you place a tuning fork at the midline and see which ear perceives the vibration louder. In a normal person, it should feel equal in both ears. If one ear has conductive hearing loss, the bone-conduction signal is relatively stronger in that ear, so the vibration is perceived louder there. If one ear has sensorineural loss, the sound is perceived louder in the opposite, better-hearing ear. So the observation that the vibration is felt louder in one ear or the other is exactly describing lateralization, which is how this test identifies unilateral hearing differences.