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Immediately after terminating unilateral deprivation, ARTs were obtained at a lower sound pressure level in the ear that had been fitted with an earplug and at a higher sound pressure level in the control ear. In contrast, categorical judgments of loudness changed in the same direction in both ears with a given stimulus level reported as louder after unilateral deprivation. The relationship between changes to the ART and loudness judgments was not statistically significant. For both the ARTs and the categorical loudness judgments, most of the changes had disappeared within 24\u2009h after earplug removal. The changes in ARTs, as a consequence of unilateral sound deprivation, are consistent with a gain control mechanism; however, the lack of relationship with the categorical loudness judgments, and the different pattern of findings for each measure, suggests the possibility of multiple gain mechanisms.<\/jats:p>","DOI":"10.1121\/1.4835715","type":"journal-article","created":{"date-parts":[[2014,1,14]],"date-time":"2014-01-14T23:22:44Z","timestamp":1389741764000},"page":"315-322","update-policy":"https:\/\/doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":36,"title":["Plasticity and modified loudness following short-term unilateral deprivation: Evidence of multiple gain mechanisms within the auditory system"],"prefix":"10.1121","volume":"135","author":[{"given":"Kevin J.","family":"Munro","sequence":"first","affiliation":[{"name":"School of Psychological Sciences, University of Manchester , Manchester M13 9PL, United Kingdom"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Charlotte","family":"Turtle","sequence":"additional","affiliation":[{"name":"School of Psychological Sciences, University of Manchester , Manchester M13 9PL, United Kingdom"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Roland","family":"Schaette","sequence":"additional","affiliation":[{"name":"Ear Institute, University College London , London WC1X 8EE, United Kingdom"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"231","reference":[{"key":"2023071501144400000_c1","first-page":"19","volume-title":"Hyperacusis: Mechanisms, Diagnosis, and Therapies","year":"2007"},{"key":"2023071501144400000_c2","doi-asserted-by":"publisher","first-page":"101","DOI":"10.1016\/0006-8993(73)90404-6","article-title":"On the neural organisation of the acoustic middle ear reflex","volume":"49","year":"1973","journal-title":"Brain Res."},{"key":"2023071501144400000_c3","doi-asserted-by":"publisher","first-page":"388","DOI":"10.1097\/00003446-199710000-00004","article-title":"The contour test of loudness perception","volume":"18","year":"1997","journal-title":"Ear. 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