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The dissimilar time course of temporary threshold shifts and reduction of inhibition in the inferior colliculus following intense sound exposure

Authors
  • Heeringa, A.N.
  • van Dijk, P.1, 2, 3, 4, 2
  • 1 Department of Otorhinolaryngology/Head and Neck Surgery
  • 2 University of Groningen
  • 3 University Medical Center Groningen
  • 4 Graduate School of Medical Sciences (Research School of Behavioural and Cognitive Neurosciences)
Type
Published Article
Journal
Hearing Research
Publisher
Elsevier BV
Publication Date
Jan 01, 2014
Accepted Date
Mar 05, 2014
Identifiers
DOI: 10.1016/j.heares.2014.03.004
Source
Elsevier
Keywords
License
Unknown

Abstract

•Threshold shifts from a free field exposure to 11 kHz of 124 dB SPL recover in one week.•ABR wave I amplitude is chronically reduced, but wave IV recovers in a week.•Spontaneous rates of inferior colliculus neurons are unaffected.•Stimulus-evoked inhibition was reduced but recovered within two to four weeks.•The increased central gain suggests a possible mechanism for hyperacusis.

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