{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,25]],"date-time":"2026-08-25T00:15:25Z","timestamp":1787616925847,"version":"build-2736575974"},"reference-count":41,"publisher":"Acoustical Society of America (ASA)","issue":"1","content-domain":{"domain":["pubs.aip.org"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2013,7,1]]},"abstract":"<jats:p>The wideband energy reflectance (ER) technique has become popular as a tool for evaluating middle ear function. Negative middle ear pressure (MEP) is a prevalent form of middle ear dysfunction, which may impact application of ER measurements in differential diagnosis. A negative MEP may be countervailed by application of an equivalent negative ear canal pressure. The present study examined ER in the same ears under normal and experimentally induced negative MEP conditions. Thirty-five subjects produced at least one negative MEP each (\u221240 to \u2212225 daPa). Negative MEP significantly altered ER in a frequency-specific manner that varied with MEP magnitude. ER increased for low- to mid-frequencies with the largest change (\u223c0.20 to 0.40) occurring between 1 and 1.5\u2009kHz. ER decreased for frequencies above 3 kHz with the largest change (\u223c\u20130.10 to \u20130.25) observed between 4.5 and 5.5\u2009kHz. Magnitude of changes increased as MEP became more negative, as did the frequencies at which maximum changes occurred, and the frequency at which enhancement transitioned to reduction. Ear canal pressure compensation restored ER to near baseline values. This suggests that the compensation procedure adequately mitigates the effects of negative MEP on ER. Theoretical issues and clinical implications are discussed.<\/jats:p>","DOI":"10.1121\/1.4807509","type":"journal-article","created":{"date-parts":[[2013,7,11]],"date-time":"2013-07-11T22:16:22Z","timestamp":1373580982000},"page":"332-341","update-policy":"https:\/\/doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":29,"title":["Wideband energy reflectance measurements: Effects of negative middle ear pressure and application of a pressure compensation procedure"],"prefix":"10.1121","volume":"134","author":[{"given":"Mark D.","family":"Shaver","sequence":"first","affiliation":[{"name":"Department of Communication Sciences and Disorders, Wichita State University , 1845 Fairmount Street, Wichita, Kansas 67260-0075"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiao-Ming","family":"Sun","sequence":"additional","affiliation":[{"name":"Department of Communication Sciences and Disorders, Wichita State University , 1845 Fairmount Street, Wichita, Kansas 67260-0075"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"231","published-online":{"date-parts":[[2013,7,11]]},"reference":[{"key":"2023071623022306800_c1","doi-asserted-by":"publisher","first-page":"221","DOI":"10.1097\/AUD.0b013e3181c00eae","article-title":"Wideband reflectance in normal Caucasian and Chinese school-aged children and in children with otitis media with effusion","volume":"31","year":"2010","journal-title":"Ear Hear."},{"key":"2023071623022306800_c2","doi-asserted-by":"publisher","first-page":"633","DOI":"10.1136\/bmj.310.6980.633","article-title":"Calculating correlation coefficients with repeated observations: Part 2\u2013correlation between subjects","volume":"310","year":"1995","journal-title":"BMJ"},{"key":"2023071623022306800_c3","first-page":"137","article-title":"Eustachian tube function and dysfunction","volume-title":"Evidence Based Otitis Media","author":"Rosenfield","year":"1999"},{"key":"2023071623022306800_c4","doi-asserted-by":"crossref","first-page":"92","DOI":"10.1288\/00005537-197701000-00011","article-title":"The significance of negative middle ear pressure","volume":"87","year":"1977","journal-title":"Laryngoscope"},{"key":"2023071623022306800_c5","doi-asserted-by":"publisher","first-page":"22","DOI":"10.1016\/j.heares.2007.11.005","article-title":"Combined effect of fluid and pressure on middle ear function","volume":"236","year":"2008","journal-title":"Hear. 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