{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,8,20]],"date-time":"2025-08-20T13:01:13Z","timestamp":1755694873151,"version":"3.37.0"},"reference-count":25,"publisher":"American Academy of Audiology","issue":"3","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["j am acad audiol"],"published-print":{"date-parts":[[2021,3,1]]},"abstract":"<jats:p><jats:bold>Abstract<\/jats:bold>  <jats:bold>Purpose<\/jats:bold>\u2003The study is concern with the distinguishing of the stimuli containing high frequency information with the frequency compression feature at the cortical level using the acoustic change complex (ACC) and the comparison of such with the ACC answers\n of individuals with normal hearing. <jats:bold>Research Design<\/jats:bold>\u2003This is a case\u2010control study. <jats:bold>Study Sample<\/jats:bold>\u2003Thirty adults (21 males and nine females) with normal hearing, ranging in age between 16 and 63 years (mean: 36.7\u2009\u00b1\u200912.9 years) and 20\n adults (16 males and four females) with hearing loss ranging in age between 16 and 70 years (mean:49.0\u2009\u00b1\u200919.8 years) have been included in this study. <jats:bold>Data Collection and Analysis<\/jats:bold>\u2003A total of 1,000\u2009ms long stimulus containing 500 and 4,000\u2009Hz\n tonal stimuli was used for ACC recording. The start frequency (SF) and compression ratio (CR) parameters of the hearing aids were programmed according to the default settings (SFd, CRd) in the device software, the optimal setting (SFo, CRo), and the extra compression (SFe, CRe) requirements\n and ACC has been recorded for each condition. Evaluation has been performed according to P1-N1-P2 wave complex and ACC complex wave latencies. Independent samples <jats:italic>t<\/jats:italic>-test was used to test the significance of the differences between the groups. <jats:bold>Results<\/jats:bold>\u2003In all individuals\n ACC has been observed. There was a significant difference between the wave latencies in normal hearing- and hearing-impaired groups. All wave latency averages of the individuals with hearing impairment were longer than the individuals with normal hearing. There were statistically significant\n differences between SFd-SFo, SFd-SFe, and SFo-SFe parameters. But there was no difference between CRd, CRo, and CRe in terms of CRs. <jats:bold>Conclusion<\/jats:bold>\u2003In order to discriminate high frequency information at the cortical level we should not rely on default settings of the SF and CR\n of the hearing aids. Optimal bandwidth must be adjusted without performing insufficient compression or over-compression. ACC can be used besides the real ear measurement for hearing aid fitting.<\/jats:p>","DOI":"10.1055\/s-0041-1722948","type":"journal-article","created":{"date-parts":[[2021,5,24]],"date-time":"2021-05-24T22:52:28Z","timestamp":1621896748000},"page":"164-170","source":"Crossref","is-referenced-by-count":3,"title":["The Effect of Nonlinear Frequency Compression on Acoustic Change Complex Responses in High-Frequency Dead-Regioned Hearing Loss"],"prefix":"10.3766","volume":"32","author":[{"given":"Ebru","family":"K\u00f6semihal","sequence":"first","affiliation":[{"name":"Department of Audiology, Near East University, Nicosia, Cyprus"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ferda","family":"Akdas","sequence":"additional","affiliation":[{"name":"Department of Audiology, Marmara University School of Medicine, Istanbul, 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Tremblay","year":"2003","journal-title":"Ear Hear"},{"issue":"04","key":"ref4","doi-asserted-by":"crossref","first-page":"290","DOI":"10.1097\/00003446-199808000-00004","article-title":"Cortical evoked response to acoustic change within a syllable","volume":"19","author":"J M Ostroff","year":"1998","journal-title":"Ear Hear"},{"key":"ref5","first-page":"7","volume-title":"Factors influencing loudness perception in people with cochlear hearing loss","author":"B CJ Moore","year":"1996"},{"issue":"05","key":"ref6","doi-asserted-by":"crossref","first-page":"281","DOI":"10.1080\/14992020500060636","article-title":"Improvements in speech perception with an experimental nonlinear frequency compression hearing device","volume":"44","author":"A Simpson","year":"2005","journal-title":"Int J Audiol"},{"issue":"01","key":"ref7","doi-asserted-by":"crossref","first-page":"111","DOI":"10.4103\/1012-5574.199416","article-title":"Edge frequency effect on speech recognition in patients with steep-slope hearing loss","volume":"33","author":"M S Salem","year":"2017","journal-title":"Egypt J Otolaryngol"},{"key":"ref8","doi-asserted-by":"crossref","first-page":"982894","DOI":"10.1155\/2012\/982894","article-title":"A pilot study on cortical auditory evoked potentials in children: aided CAEPs reflect improved high-frequency audibility with frequency compression hearing aid technology","volume":"2012","author":"D Glista","year":"2012","journal-title":"Int J Otolaryngol"},{"issue":"01","key":"ref9","doi-asserted-by":"crossref","first-page":"36","DOI":"10.3109\/21695717.2015.1079984","article-title":"Evaluation of non-linear frequency compression hearing aids using speech P1-cortical auditory evoked potential","volume":"14","author":"N Hazza","year":"2016","journal-title":"Hear Balance Commun"},{"issue":"05","key":"ref10","doi-asserted-by":"crossref","first-page":"e261","DOI":"10.1097\/AUD.0000000000000177","article-title":"Effects of nonlinear frequency compression on ACC amplitude and listener performance","volume":"36","author":"B J Kirby","year":"2015","journal-title":"Ear Hear"},{"key":"ref12","doi-asserted-by":"crossref","first-page":"86","DOI":"10.1055\/s-0033-1341346","article-title":"Individual variability in recognition of frequency-lowered speech","volume":"34","author":"M J Alexander","year":"2013","journal-title":"Semin Hear"},{"key":"ref13","first-page":"367","article-title":"The ten\u2013twenty electrode system of the international federation electroencephalogr","volume":"10","author":"H H Jasper","year":"1958","journal-title":"Clin Neurophysiol"},{"issue":"03","key":"ref14","doi-asserted-by":"crossref","first-page":"356","DOI":"10.1097\/AUD.0b013e3181ce6355","article-title":"Stimulus presentation strategies for eliciting the acoustic change complex: increasing efficiency","volume":"31","author":"B A Martin","year":"2010","journal-title":"Ear Hear"},{"key":"ref15","doi-asserted-by":"crossref","first-page":"93","DOI":"10.1097\/01.aud.0000202288.21315.bd","article-title":"Neural representation of amplified speech sounds","volume":"27","author":"K L Tremblay","year":"2006","journal-title":"Ear Hear"},{"key":"ref16","doi-asserted-by":"crossref","first-page":"261","DOI":"10.1097\/AUD.0000000000000177","article-title":"Effects of nonlinear frequency compression on ACC amplitude and listener performance","volume":"36","author":"B J Kirby","year":"2015","journal-title":"Ear Hea"},{"issue":"03","key":"ref17","first-page":"381","article-title":"Can global field power be an objective tool to assess cortical responses to acoustic change? A study with cochlear implant users","volume":"9","author":"M D Turkyilmaz","year":"2013","journal-title":"Int Adv Otol"},{"issue":"05","key":"ref18","doi-asserted-by":"crossref","first-page":"350","DOI":"10.3109\/14992027.2012.760850","article-title":"Effect of pre-transition stimulus duration on acoustic change complex","volume":"52","author":"M K Ganapathy","year":"2013","journal-title":"Int J Audiol"},{"issue":"03","key":"ref19","doi-asserted-by":"crossref","first-page":"e63","DOI":"10.1097\/01.aud.0000436605.92129.1b","article-title":"Objective measures of electrode discrimination with electrically evoked auditory change complex and speech-perception abilities in children with auditory neuropathy spectrum disorder","volume":"35","author":"S He","year":"2014","journal-title":"Ear Hear"},{"issue":"10","key":"ref20","doi-asserted-by":"crossref","first-page":"771","DOI":"10.3109\/14992027.2012.699198","article-title":"Auditory discrimination: the relationship between psychophysical and electrophysiological measures","volume":"51","author":"S He","year":"2012","journal-title":"Int J Audiol"},{"issue":"04","key":"ref21","doi-asserted-by":"crossref","first-page":"143","DOI":"10.1097\/AUD.0000000000000030","article-title":"Frequency lowering in hearing aids: impact on speech and language development","volume":"35","author":"R A Bentler","year":"2014","journal-title":"Ear Hear"},{"issue":"09","key":"ref22","doi-asserted-by":"crossref","first-page":"632","DOI":"10.1080\/14992020902971349","article-title":"Evaluation of nonlinear frequency compression: clinical outcomes","volume":"48","author":"D Glista","year":"2009","journal-title":"Int J Audiol"},{"issue":"03","key":"ref23","doi-asserted-by":"crossref","first-page":"353","DOI":"10.1097\/AUD.0000000000000007","article-title":"Effects of nonlinear frequency compression on speech identification in children with hearing loss","volume":"35","author":"A Hillock-Dunn","year":"2014","journal-title":"Ear Hear"},{"issue":"02","key":"ref24","doi-asserted-by":"crossref","first-page":"105","DOI":"10.3766\/jaaa.24.2.4","article-title":"The contribution of a frequency-compression hearing aid to contralateral cochlear implant performance","volume":"24","author":"A E Perreau","year":"2013","journal-title":"J Am Acad Audiol"},{"issue":"06","key":"ref25","doi-asserted-by":"crossref","first-page":"396","DOI":"10.3109\/14992027.2010.551788","article-title":"Long-term effects of non-linear frequency compression for children with moderate hearing loss","volume":"50","author":"J Wolfe","year":"2011","journal-title":"Int J Audiol"},{"issue":"10","key":"ref26","doi-asserted-by":"crossref","first-page":"618","DOI":"10.3766\/jaaa.21.10.2","article-title":"Evaluation of nonlinear frequency compression for school-age children with moderate to moderately severe hearing loss","volume":"21","author":"J Wolfe","year":"2010","journal-title":"J Am Acad Audiol"}],"container-title":["Journal of the American Academy of Audiology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.ingentaconnect.com\/content\/aaa\/jaaa\/2021\/00000032\/00000003\/art00005","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,2,6]],"date-time":"2025-02-06T08:12:42Z","timestamp":1738829562000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.ingentaconnect.com\/content\/10.1055\/s-0041-1722948"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021,3,1]]},"references-count":25,"journal-issue":{"issue":"3","published-print":{"date-parts":[[2021,3,1]]}},"alternative-id":["1050-0545(20210301)32:3L.164;1-"],"URL":"https:\/\/doi.org\/10.1055\/s-0041-1722948","relation":{},"ISSN":["1050-0545"],"issn-type":[{"type":"print","value":"1050-0545"}],"subject":[],"published":{"date-parts":[[2021,3,1]]}}}