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Suppression grew nearly linearly when f3\u2009\u2248\u2009f2, grew more rapidly for f3\u2009&amp;lt;\u2009f2, and grew more slowly for f3\u2009&amp;gt;\u2009f2. These results are consistent with physiological and mechanical data from lower animals, as well as previous DPOAE data from humans, although no previous DPOAE study has described suppression growth for as wide a range of frequencies and levels. These trends were evident for all f2 and L2 combinations; however, some exceptions were noted. Specifically, suppression growth rate was less steep as a function of f3 for f2 frequencies \u22641 kHz. Thus, despite the qualitative similarities across frequency, there were quantitative differences related to f2, suggesting that there may be subtle differences in suppression for frequencies above 1 kHz compared to frequencies below 1 kHz.<\/jats:p>","DOI":"10.1121\/1.3523287","type":"journal-article","created":{"date-parts":[[2011,2,24]],"date-time":"2011-02-24T18:45:03Z","timestamp":1298573103000},"page":"801-816","update-policy":"https:\/\/doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":13,"title":["Growth of suppression in humans based on distortion-product otoacoustic emission measurements"],"prefix":"10.1121","volume":"129","author":[{"given":"Michael P.","family":"Gorga","sequence":"first","affiliation":[{"name":"Boys Town National Research Hospital, 555 North 30th Street 1 , Omaha, Nebraska 68131"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Stephen T.","family":"Neely","sequence":"additional","affiliation":[{"name":"Boys Town National Research Hospital, 555 North 30th Street 1 , Omaha, Nebraska 68131"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Judy","family":"Kopun","sequence":"additional","affiliation":[{"name":"Boys Town National Research Hospital, 555 North 30th Street 1 , Omaha, Nebraska 68131"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hongyang","family":"Tan","sequence":"additional","affiliation":[{"name":"Boys Town National Research Hospital, 555 North 30th Street 1 , Omaha, Nebraska 68131"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"231","published-online":{"date-parts":[[2011,2,11]]},"reference":[{"key":"2023080123120049700_c1","doi-asserted-by":"publisher","first-page":"112","DOI":"10.1121\/1.380841","article-title":"Two-tone suppression in auditory-nerve fibers: Extensions of a stimulus-response relationship","volume":"59","year":"1976","journal-title":"J. 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