The effect of visual and audiovisual competition on the auditory N1-P2 evoked potential.
Background: Use of a competition stimuli (e.g., video) in clinical settings is a widespread practice, yet the effects of these stimuli on evoked potentials are not well understood. Purpose: The present investigation acquired the click evoked auditory N1-P2 in quiet and in two types of competition: d...
| Publicado en: | Journal of the American Academy of Audiology Vol. 20; no. 9; pp. 569 - 582 |
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| Autores principales: | , , |
| Formato: | research tables/charts tracings Journal Article |
| Publicado: |
Thieme Medical Publishing Inc.
Oct2009
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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=105237560&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 105237560 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 10500545 9OC jtl: Journal of the American Academy of Audiology issn: 10500545 maglogo: Y pubinfo: dt: Oct2009 vid: 20 iid: 9 pid: 2811 pub: Thieme Medical Publishing Inc. place: New York, New York artinfo: ui: 105237560 2010460394 10.3766/jaaa.20.9.5 NLM19902704 105237560 ppf: 569 ppct: 13 formats: fmt: – @attributes: type: T – @attributes: type: P tig: atl: The effect of visual and audiovisual competition on the auditory N1-P2 evoked potential. aug: au: Weihing J Daniels S Musiek FE affil: University of Connecticut, Department of Communication Disorders, Neuroaudiology Lab, 850 Bolton Road, Unit 1085, Storrs, CT 06238-1085; jeffrey.weihing@Uconn.edu sug: subj: Audiovisuals Distraction Evoked Potentials, Auditory Sensory Stimulation Acoustic Stimulation Analysis of Variance Attention Auditory Perceptual Disorders Auditory Threshold Descriptive Statistics Digital Versatile Disc Female Interrater Reliability Quantitative Studies Reliability Visual Perception Female ab: Background: Use of a competition stimuli (e.g., video) in clinical settings is a widespread practice, yet the effects of these stimuli on evoked potentials are not well understood. Purpose: The present investigation acquired the click evoked auditory N1-P2 in quiet and in two types of competition: during presentation of an unrelated visual stimulus or audiovisual stimulus. Responses were acquired in each of these conditions at two click stimulus levels (i.e., 35 and 65 dBnHL) to determine if the effect of competition was greater closer to threshold. An attempt was made to quantify effect robustness by examining within-and between-session reliability. Research Design: Repeated measures ANOVA. Study Sample: 17 normal hearing female subjects. Results: Findings indicated a significant effect of audiovisual competition on the amplitude of the N1P2, and a borderline significant effect of visual competition on this index. The extent of visual competition was better conveyed when examined on a case-by-case basis, in which was revealed a subgroup of the sample that was negatively affected by visual competition. There was no interaction between competition and click stimulus level. Conclusions: Although competition stimuli can negatively affect the amplitude of the N1-P2, consideration should be given to subjects on a case-by-case basis to warrant if removal of this stimulus is necessary. pubtype: Academic Journal doctype: research tables/charts tracings Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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