Effects of broadband noise on cortical evoked auditory responses at different loudness levels in young adults

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dc.contributor.author Sharma, M en
dc.contributor.author Purdy, Suzanne en
dc.contributor.author Munro, KJ en
dc.contributor.author Sawaya, K en
dc.contributor.author Peter, V en
dc.coverage.spatial England en
dc.date.accessioned 2015-06-01T23:51:38Z en
dc.date.available 2013-10-17 en
dc.date.issued 2014-03-26 en
dc.identifier.citation Neuroreport, 2014, 25 (5), pp. 312 - 319 en
dc.identifier.issn 0959-4965 en
dc.identifier.uri http://hdl.handle.net/2292/25698 en
dc.description.abstract Young adults with no history of hearing concerns were tested to investigate their /da/-evoked cortical auditory evoked potentials (P1-N1-P2) recorded from 32 scalp electrodes in the presence and absence of noise at three different loudness levels (soft, comfortable, and loud), at a fixed signal-to-noise ratio (+3 dB). P1 peak latency significantly increased at soft and loud levels, and N1 and P2 latencies increased at all three levels in the presence of noise, compared with the quiet condition. P1 amplitude was significantly larger in quiet than in noise conditions at the loudest level. N1 amplitude was larger in quiet than in noise for the soft level only. P2 amplitude was reduced in the presence of noise to a similar degree at all loudness levels. The differential effects of noise on P1, N1, and P2 suggest differences in auditory processes underlying these peaks. The combination of level and signal-to-noise ratio should be considered when using cortical auditory evoked potentials as an electrophysiological indicator of degraded speech processing en
dc.description.uri en
dc.language eng en
dc.publisher Wolters Kluwer Health en
dc.relation.ispartofseries Neuroreport en
dc.rights Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. Details obtained from http://www.sherpa.ac.uk/romeo/issn/0959-4965/ http://edmgr.ovid.com/nr/accounts/ifauth.htm en
dc.rights.uri https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm en
dc.subject Acoustic Stimulation en
dc.subject Adult en
dc.subject Auditory Perception en
dc.subject Brain en
dc.subject Electroencephalography en
dc.subject Evoked Potentials, Auditory en
dc.subject Female en
dc.subject Functional Laterality en
dc.subject Humans en
dc.subject Male en
dc.subject Noise en
dc.subject Speech en
dc.subject Speech Perception en
dc.subject Time Factors en
dc.subject Young Adult en
dc.title Effects of broadband noise on cortical evoked auditory responses at different loudness levels in young adults en
dc.type Journal Article en
dc.identifier.doi en
pubs.issue 5 en
pubs.begin-page 312 en
pubs.volume 25 en
dc.rights.holder Copyright: Wolters Kluwer Health en
dc.identifier.pmid 24323122 en
pubs.author-url http://www.ncbi.nlm.nih.gov/pubmed/24323122 en
pubs.end-page 319 en
pubs.publication-status Published en
dc.rights.accessrights http://purl.org/eprint/accessRights/RestrictedAccess en
pubs.subtype Journal Article en
pubs.subtype Research Support, Non-U.S. Gov't en
pubs.subtype Article en
pubs.elements-id 420731 en
pubs.org-id Science en
pubs.org-id Psychology en
dc.identifier.eissn 1473-558X en
pubs.record-created-at-source-date 2015-06-02 en
pubs.dimensions-id 24323122 en

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