A condition characterized by sudden, short bursts of vertigo that typically occur with changes in head position. It is often caused when the otoconia get jolted out of their normal positions. Doctors use the Epley Maneuver to get the otoconia back into their proper places.

A hearing aid that rests behind the ear. Sound from the aid is carried through a small clear tube to an earmold that fits into the ear.

A hearing test used with infants and young children in which their behavior (such as eye opening and heard turning) is observed to see how they respond to sound. This testing can be unreliable and can be affected by observer bias. It should be used in conjunction with other tests.

Assessment procedures that involve observable responses to sound. The same as Behavioral Observation Audiometry.

The central membrane in the cochlea upon which the hair cells rest. The basilar membrane is contained within the Organ of Corti.

The base of the snail-shell-shaped cochlea nearest the middle ear. The basal region detects high frequency sounds and sends them to the brain.