PMID: 8609283Feb 1, 1996Paper

Effects of aging on the fine structure of the 2f1-f2 acoustic distortion product

The Journal of the Acoustical Society of America
N J He, R A Schmiedt

Abstract

The fine structures of 2f1-f2 acoustic distortion products (ADP) were measured in four groups of human subjects: (1) young with normal hearing, (2) aged with normal or near-normal hearing, (3) aged subjects with more severe hearing loss above 2000 Hz, and (4) young with hearing similar to those of the normal- or near-normal-hearing aged group. The purpose of this study was to investigate how ADP fine structure changes with age and hearing loss. Results show that the fine structure is observable whenever the ADP is measurable, and its sharpness, defined as the peak-to-peak frequency distance, is independent of age hearing loss, and longitudinal amplitude change. There is a large variance in ADP peak amplitudes in aged subjects with or without hearing loss as compared to young normal hearing subjects, the aged group generally having lower peak amplitudes than those of the young group. According to an ANOVA analysis with absolute threshold as covariate, the null hypothesis stating that there is no aging effect on the ADP peak responses cannot be ruled out, a conclusion similar to that made by Stover and Norton [J. Acoust. Soc. Am. 94, 2670-2681 (1993)]. On the other hand, threshold changes cannot explain all the differences in ADP...Continue Reading

Citations

Apr 6, 2012·Journal of the Association for Research in Otolaryngology : JARO·Carolina Abdala, Sumitrajit Dhar
Apr 28, 2006·Otology & Neurotology : Official Publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology·Margaret A ChenFred H Linthicum
Oct 15, 2013·The Journal of the Acoustical Society of America·Amin Saremi, Stefan Stenfelt
Jan 12, 2011·The Journal of the Acoustical Society of America·Miguel Angel Aranda de ToroDorte Hammershøi
Jan 21, 2014·The Journal of the Acoustical Society of America·Gayla L PolingSumitrajit Dhar
Jun 1, 1997·The Journal of the Acoustical Society of America·N He, R A Schmiedt
Nov 10, 2004·The Journal of the Acoustical Society of America·Manfred Mauermann, Birger Kollmeier
Mar 25, 2009·American Journal of Audiology·Shaum Bhagat
Feb 28, 2008·European Archives of Oto-rhino-laryngology : Official Journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : Affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery·Wolfgang WagnerStefan K Plontke
May 8, 2008·Audiology & Neuro-otology·Siti Zamratol-Mai Sarah Mukari, Wan Hasyimah Wan Mamat
Sep 26, 2009·European Archives of Oto-rhino-laryngology : Official Journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : Affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery·Sebastian HothPeter Plinkert
Jun 29, 2018·Ear and Hearing·Nikki A GoTiffany A Johnson
Aug 7, 2004·The Journal of the Acoustical Society of America·Peter F Craigmile, Wayne M King
Sep 16, 2011·Ear and Hearing·Tiffany A Johnson, Lauren G Baranowski

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