PMID: 16625869Apr 22, 2006Paper

Loudness discomfort level in normal hearing individuals

Pró-fono : revista de atualização científica
Keila Alessandra Baraldi Knobel, Tanit Ganz Sanchez

Abstract

Loudness Discomfort Level (LDL), a test used in the hearing aid fitting process, has also been recommended to evaluate patients with tinnitus and/or suspect of hyperacusis. To determine LDL reference values for normal hearing individuals and to correlate the LDL to the Acoustic Reflex Threshold (ART). LDL was investigated in 64 normal hearing subjects, with ages between 18 and 25 years (53.1% female), in the frequency threshold of 0.5 to 8KHz and for speech (non-recorded, non-standardized connected discourse). Pulsate pure tones were presented for two seconds, with a one-second interval between each presentation. The initial stimulus intensity was at 50dB and was followed by ascending presentations, of 5dB each, until the subject referred initial discomfort with loudness. The testing procedure was performed separately in each ear, and was immediately repeated at the end of the test (test and retest situation). The choice of the ear that would start the testing procedure was alternated for each subject. After that contralateral acoustic reflexes ART were measured. The presence of the ART was indicated by a minimal needle deflection (larger than 0.05ml) on the emittance equipment. Median varied from 86 to 98dBHL, with no statisti...Continue Reading

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Citations

Dec 4, 2019·The Annals of Otology, Rhinology, and Laryngology·Mehdi AbouzariHamid R Djalilian
Jun 30, 2019·BMC Neurology·Alice A TakeutiFernando F Ganança
Jun 18, 2017·International Journal of Audiology·Hashir Aazh, Brian C J Moore
Dec 12, 2020·International Journal of Audiology·Bethany AdamsDerek J Hoare

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