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In addition, the inverse shapes of their METFs were obtained by adjusting the intensity of a low-frequency suppressor tone to maintain an equal suppression depth of otoacoustic emissions for various suppressor tone frequencies (20\u2013250\u2009Hz). For 11 subjects, the METFs showed a resonance. Six of them had coinciding features in both ears, and also in their ELC. For two subjects only the right-ear METF was obtainable, and in one case it was consistent with the ELC. One other subject showed a consistent lack of the feature in their ELC and in both METFs. Although three subjects displayed clear inconsistencies between both measures, the similarity between inverse METF and ELC for most subjects shows that the helicotrema has a marked impact on low-frequency sound perception.<\/jats:p>","DOI":"10.1121\/1.4967295","type":"journal-article","created":{"date-parts":[[2016,11,18]],"date-time":"2016-11-18T18:02:34Z","timestamp":1479492154000},"page":"3799-3809","update-policy":"https:\/\/doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":8,"title":["The effect of the helicotrema on low-frequency loudness perception"],"prefix":"10.1121","volume":"140","author":[{"given":"Carlos","family":"Jurado","sequence":"first","affiliation":[{"name":"Aalborg University Section of Acoustics, Department of Electronic Systems, , Fredrik Bajersvej 7-A, Denmark"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Torsten","family":"Marquardt","sequence":"additional","affiliation":[{"name":"University College London UCL Ear Institute, , 332 Grays Inn Road, London, WC1X 8EE, United Kingdom"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"231","published-online":{"date-parts":[[2016,11,18]]},"reference":[{"key":"2023072007471636300_c1","doi-asserted-by":"publisher","first-page":"100","DOI":"10.1016\/S0378-5955(00)00240-9","article-title":"Human middle-ear sound transfer function and cochlear input impedance","volume":"152","year":"2001","journal-title":"Hear. 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