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Items: 9

1.

Noise

Any sound which is unwanted or interferes with HEARING other sounds.

2.

Signal-To-Noise Ratio

The comparison of the quantity of meaningful data to the irrelevant or incorrect data.

Year introduced: 2012

3.

Noise, Transportation

Noise associated with transportation, particularly aircraft and automobiles.

Year introduced: 1991(1979)

4.

Noise, Occupational

Noise present in occupational, industrial, and factory situations.

Year introduced: 1991(1979)

5.

Hearing Loss, Noise-Induced

Hearing loss due to exposure to explosive loud noise or chronic exposure to sound level greater than 85 dB. The hearing loss is often in the frequency range 4000-6000 hertz.

Year introduced: 1979

6.

Hearing Loss, Hidden

Hearing loss that is difficult to diagnose by standard hearing tests as it most often pertains to difficulties in hearing only in certain situations such as in noisy environments.

Year introduced: 2024

7.

Hearing Tests

Part of an ear examination that measures the ability of sound to reach the brain.

8.

Tinnitus

A nonspecific symptom of hearing disorder characterized by the sensation of buzzing, ringing, clicking, pulsations, and other noises in the ear. Objective tinnitus refers to noises generated from within the ear or adjacent structures that can be heard by other individuals. The term subjective tinnitus is used when the sound is audible only to the affected individual. Tinnitus may occur as a manifestation of COCHLEAR DISEASES; VESTIBULOCOCHLEAR NERVE DISEASES; INTRACRANIAL HYPERTENSION; CRANIOCEREBRAL TRAUMA; and other conditions.

9.

Transcranial Direct Current Stimulation

A technique of brain electric stimulation therapy which uses constant, low current delivered via ELECTRODES placed on various locations on the scalp.

Year introduced: 2015

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