Effects of artifact rejection and Bayesian weighting on the auditory brainstem response during quiet and active behavioral conditions.
PURPOSE: To evaluate the effects of 2 noise reduction techniques on the auditory brainstem response (ABR). METHOD: ABRs of 20 normal hearing adults were recorded during quiet and active behavioral conditions using 2 stimulus intensity levels. Wave V amplitudes and residual noise root-mean-square val...
| Publicado en: | American Journal of Audiology Vol. 15; no. 2; pp. 154 - 164 |
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| Autores principales: | , |
| Formato: | equations & formulas research tables/charts tracings Journal Article |
| Publicado: |
American Speech-Language-Hearing Association
Dec2006
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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=106278079&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 106278079 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 10590889 5KS jtl: American Journal of Audiology issn: 10590889 maglogo: N pubinfo: dt: Dec2006 vid: 15 iid: 2 pid: 42 pub: American Speech-Language-Hearing Association place: Rockville, Maryland artinfo: ui: 106278079 2009481183 10.1044/1059-0889(2006/019) NLM17182880 106278079 ppf: 154 ppct: 10 formats: fmt: @attributes: type: P tig: atl: Effects of artifact rejection and Bayesian weighting on the auditory brainstem response during quiet and active behavioral conditions. aug: au: Sanchez JT Gans D affil: Department of Neurobiology, E108, Northeastern Ohio Universities College of Medicine, 4209 State Route 44, P.O. Box 95, Rootstown, OH 44272; jtsanche@kent.edu. sug: subj: Artifacts Evoked Potentials, Auditory, Brainstem Adult Analysis of Variance Comparative Studies Descriptive Statistics Female Male Noise Prevention and Control Post Hoc Analysis Repeated Measures Students, College T-Tests Human Adult: 19-44 years Female Male ab: PURPOSE: To evaluate the effects of 2 noise reduction techniques on the auditory brainstem response (ABR). METHOD: ABRs of 20 normal hearing adults were recorded during quiet and active behavioral conditions using 2 stimulus intensity levels. Wave V amplitudes and residual noise root-mean-square values were measured following the offline application of artifact rejection and Bayesian weighting. Repeated measures analysis of variance and Bonferroni adjusted pairwise t tests were utilized to evaluate significant main effects and interactions between the 2 noise reduction techniques. RESULTS: ABRs recorded during the quiet behavioral condition resulted in minimal differences in wave V amplitude and noise reduction improvement, suggesting that the 2 techniques were equally effective under ideal recording situations. During the active behavioral condition, however, the techniques differed significantly in the ability to preserve the evoked potential and reduce noise. Consequently, strict artifact rejection levels resulted in an inherent underestimation of wave V amplitudes when compared with the Bayesian approach. CONCLUSION: Artifact rejection had a detrimental effect on waveform morphology of the ABR. This could lead to difficulty in ABR interpretation when patients are active and ultimately result in diagnostic errors. pubtype: Academic Journal doctype: equations & formulas research tables/charts tracings Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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