- pure tone audiometry
- audiometry utilizing pure tones that are relatively free of noise and overtones.
Medical dictionary. 2011.
pure tone audiometry
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Pure tone audiometry — (PTA) is the key hearing test used to identify hearing threshold levels of an individual, enabling determination of the degree, type and configuration of a hearing loss. Thus, providing the basis for diagnosis and management. PTA is a subjective … Wikipedia
Audiometry — is the testing of hearing ability. Typically, audiometric tests determine a subject s hearing levels with the help of an audiometer, but may also measure ability to discriminate between different sound intensities, recognize pitch, or distinguish … Wikipedia
electrodermal audiometry — audiometry in which the subject is conditioned to pure tones by harmless electric shock; thereafter when a pure tone is heard a shock is anticipated, resulting in a brief electrodermal response, which is recorded. The lowest intensity at which… … Medical dictionary
localization audiometry — a technique for measuring the capacity to locate the source of a pure tone received binaurally in a sound field … Medical dictionary
Bйkйsy audiometry — audiometry in which the patient, by pressing a signal button, traces monaural thresholds for pure tones: the intensity of the tone decreases as long as the button is depressed and increases when it is released. Both continuous and interrupted… … Medical dictionary
ear, human — ▪ anatomy Introduction organ of hearing and equilibrium that detects and analyzes noises by transduction (or the conversion of sound waves into electrochemical impulses) and maintains the sense of balance (equilibrium). The human ear, like … Universalium
Otoacoustic emission — An otoacoustic emission (OAE) is a sound which is generated from within the inner ear. Having been predicted by Thomas Gold in 1948, its existence was first demonstrated experimentally by David Kemp in 1978[1] and otoacoustic emissions have since … Wikipedia
Absolute threshold of hearing — The absolute threshold of hearing (ATH) is the minimum sound level of a pure tone that an average ear with normal hearing can hear with no other sound present. The absolute threshold relates to the sound that can just be heard by the… … Wikipedia
Equal-loudness contour — An equal loudness contour is a measure of sound pressure (dB SPL), over the frequency spectrum, for which a listener perceives a constant loudness when presented with pure steady tones. The unit of measurement for loudness levels is the phon, and … Wikipedia
Auditory brainstem response — The auditory brainstem response (ABR) is an auditory evoked potential extracted from ongoing electrical activity in the brain and recorded via electrodes placed on the scalp. The resulting recording is a series of vertex positive waves of which I … Wikipedia
