Objective assessment of noise-induced hearing loss : a comparison of methods

dc.contributor.authorBiagio-de Jager, Leigh
dc.contributor.authorSwanepoel, De Wet
dc.contributor.authorSoer, Maggi E. (Magdalena Elizabeth)
dc.contributor.emaildewet.swanepoel@up.ac.zaen
dc.date.accessioned2010-03-16T11:38:44Z
dc.date.available2010-03-16T11:38:44Z
dc.date.issued2009-07
dc.description.abstractObjective measures may be required to estimate hearing thresholds in individuals who feign hearing loss. This study compared two auditory evoked potential techniques, slow cortical auditory evoked potential (SCAEP) and auditory steady-state response (ASSR) for estimating behavioural hearing thresholds in adults exposed to occupational noise. Participants had either normal hearing (n=15), or a hearing loss with a history of occupational noise exposure (n=16). Mean differences between SCAEP and behavioural thresholds for both participant groups varied between 0 to 6 dB across 0.5, 1, 2, and 4 kHz with standard deviations of ±10 dB. The mean difference between ASSR and behavioural thresholds was larger varying between 22 to 32 dB with standard deviations of ±13 to 14 dB. Overall SCAEP correlation with behavioural thresholds was 0.85 compared to 0.75 for ASSR. Findings suggest SCAEP may be the objective measure of choice for this population but, unlike the ASSR, require interpretation of responses by experienced clinicians.en
dc.identifier.citationBiagio, L, Swanepoel, DCD & Soer, M 2009, 'Objective assessment of noise-induced hearing loss: a comparison of methods', Occupational Health Southern Africa, pp. 26-32. [http://www.occhealth.co.za]en
dc.identifier.issn1024-6274
dc.identifier.urihttp://hdl.handle.net/2263/13486
dc.language.isoenen
dc.publisherSouth African Society of Occupational Medicine (SASOM)en
dc.rightsSouth African Society of Occupational Medicine (SASOM)en
dc.subjectOccupational noise-induced hearing lossen
dc.subjectNonorganic hearing lossen
dc.subjectAuditory steady-state responseen
dc.subjectClinical effectivenessen
dc.subjectStimulus and recording parametersen
dc.subject.lcshDeafness, Noise induceden
dc.subject.lcshNoise -- Physiological effecten
dc.subject.lcshAuditory evoked responseen
dc.subject.lcshParametric devicesen
dc.subject.lcshHearing levels -- Testingen
dc.titleObjective assessment of noise-induced hearing loss : a comparison of methodsen
dc.typeArticleen

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