| 000 | 01998nam a22001937a 4500 | ||
|---|---|---|---|
| 003 | OSt | ||
| 005 | 20151125152010.0 | ||
| 008 | 151106b xxu||||| |||| 00| 0 eng d | ||
| 040 | _cNational Acoustic Laboratories | ||
| 100 | _aVarghese, Leonard | ||
| 245 | _aEvidence against attentional state modulating scalp-recorded auditory brainstem steady-state responses | ||
| 520 | 3 | _aAuditory brainstemresponses(ABRs)andtheirsteady-statecounterpart(subcorticalsteady-state responses,SSSRs)aregenerallythoughttobeinsensitivetocognitivedemands.However,a handfulofstudiesreportthatSSSRsaremodulated dependingonthesubject'sfocusofattention, either towardsorawayfromanauditorystimulus. Here,weexploredwhetherattentionalfocus affectstheenvelope-followingresponse(EFR),whichisaparticularkindofSSSR,andifso, whethertheeffectsarespecific towhichsoundelementsinasoundmixtureasubjectisattending (selectiveauditoryattentionalmodulation),specific toattendedsensoryinput(inter-modal attentionalmodulation),orinsensitivetoattentional focus.WecomparedthestrengthofEFR- stimulusphaselockinginhumanlistenersundervarioustasks:listeningtoamonauralstimulus, selectively attendingtoaparticularearduringdichotic stimuluspresentation,andattendingto visualstimuliwhileignoringdichoticauditory inputs.Weobservednosystematicchangesinthe EFR acrossexperimentalmanipulations,eventhoughcorticalEEGrevealedattention-related modulations ofalphaactivityduringthetask. We concludethatattentionaleffects,ifany,on humansubcorticalrepresentation ofsoundscannotbeobservedrobustlyusingEFRs. | |
| 650 | _aFrequency-following response FFR Envelope-following response Attention Auditory processing | ||
| 700 | _aHariM.Bharadwaj, | ||
| 700 | _aBarbaraG.Shinn-Cunningham | ||
| 773 | 0 |
_g2015 _tBrain Research |
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| 856 | _uhttp://dspace.nal.gov.au/xmlui/bitstream/handle/123456789/283/Evidence%20against%20attentional%20state%20modulating%20scalp%20recorded%20auditory%20brainstem.pdf?sequence=1&isAllowed=y | ||
| 942 |
_2udc _cARTICLE |
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| 999 |
_c2516 _d2516 |
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