Time-intensity trading in the late auditory evoked potential.
The present study investigated physiological correlates of the time-intensity trading relationship in late components (N1, P2) of the auditory evoked potential. Late-potential and behavioral thresholds were estimated in five normal-hearing, young adult participants for 1000- and 4000-Hz tone bursts...
| Publicado en: | Journal of Speech, Language & Hearing Research Vol. 42; no. 3; pp. 516 - 526 |
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| Autores principales: | , |
| Formato: | research tables/charts tracings Journal Article |
| Publicado: |
American Speech-Language-Hearing Association
Jun1999
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=107228589&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 107228589 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 10924388 1SM jtl: Journal of Speech, Language & Hearing Research issn: 10924388 maglogo: N pubinfo: dt: Jun1999 vid: 42 iid: 3 pid: 42 pub: American Speech-Language-Hearing Association place: Rockville, Maryland artinfo: ui: 107228589 107228589 1999081883 10.1044/jslhr.4203.516 NLM10391619 107228589 ppf: 516 ppct: 10 formats: fmt: – @attributes: type: T – @attributes: type: P tig: atl: Time-intensity trading in the late auditory evoked potential. aug: au: Eddins AC Peterson JR affil: Department of Speech and Hearing Sciences, Indiana University, 200 S. Jordan Avenue, Bloomington, IN 47405. E-mail: aeddins@indiana.edu sug: subj: Evoked Potentials, Auditory Physiology Time Factors Descriptive Research Female Male Adult Audiometry, Evoked Response Auditory Threshold Two-Way Analysis of Variance Repeated Measures Human Adult: 19-44 years Female Male ab: The present study investigated physiological correlates of the time-intensity trading relationship in late components (N1, P2) of the auditory evoked potential. Late-potential and behavioral thresholds were estimated in five normal-hearing, young adult participants for 1000- and 4000-Hz tone bursts having durations of 8, 16, 32, 64, and 128 ms. The results showed that late-potential thresholds decreased by an average of 24 dB for 1000-Hz conditions and 18 dB for 4000-Hz conditions. Behavioral thresholds also improved by about 22 dB and 18 dB for 1000-Hz and 4000-Hz conditions, respectively. The slope of improvement for both late-potential and behavioral thresholds was on the order of -4 to -6 dB per doubling of stimulus duration, depending on stimulus frequency. Stimulus duration also influenced latency and amplitude measures of the N1 and P2 components such that response latency decreased and amplitude increased as stimulus duration increased. The present results demonstrate a time-intensity trading relationship in components of the late potentials that is consistent with previous psychophysical and physiological data. pubtype: Academic Journal doctype: research tables/charts tracings Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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