Detection of the acoustic stapedius reflex in infants using wideband energy reflectance and admittance.
This study examined the measurement of the contralateral acoustic stapedius reflex in six-week-old infants and adults using wideband shifts in admittance and energy reflectance (YR). The reflex activator was bandpass noise from 2,500 to 11,000 Hz presented at a maximum spectrum level of 51 dB SPL me...
| Publicado en: | Journal of the American Academy of Audiology Vol. 16; no. 5; pp. 278 - 291 |
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| Autores principales: | , |
| Formato: | equations & formulas research tables/charts tracings Journal Article |
| Publicado: |
Thieme Medical Publishing Inc.
May2005
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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=106543302&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 106543302 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: May2005 vid: 16 iid: 5 pid: 2811 pub: Thieme Medical Publishing Inc. place: New York, New York artinfo: ui: 106543302 21204381 2009038356 10.3766/jaaa.16.5.3 NLM16119255 106543302 ppf: 278 ppct: 13 formats: fmt: – @attributes: type: T – @attributes: type: P tig: atl: Detection of the acoustic stapedius reflex in infants using wideband energy reflectance and admittance. aug: au: Feeney MP Sanford CA affil: Department of Otolaryngology, Head and Neck Surgery, Virginia Merrill Bloedel Hearing Research Center, University of Washington, Bix 357923, Seattle, WA 98195; pfeeney@u.washington.edu sug: subj: Acoustic Impedance Tests Utilization Reflex, Acoustic Evaluation Adult Calibration Comparative Studies Correlation Coefficient Descriptive Statistics Female Fisher's Exact Test Infant, Newborn Linear Regression Male Washington Funding Source Human Adult: 19-44 years Infant, Newborn: birth-1 month Female Male ab: This study examined the measurement of the contralateral acoustic stapedius reflex in six-week-old infants and adults using wideband shifts in admittance and energy reflectance (YR). The reflex activator was bandpass noise from 2,500 to 11,000 Hz presented at a maximum spectrum level of 51 dB SPL measured in the ear canal. Reflexes were detected by calculating a cross-correlation between one-twelfth-octave measurements of YR for the highest activator level and responses to lower levels. The reflex-induced shifts in YR for the infant ears were similar in pattern to adult responses but were noisy at frequencies below 1000 Hz. Infant reflexes were more successfully detected when the cross-correlation was calculated from 1000 to 8000 Hz, whereas adult reflexes were more successfully detected for a cross-correlation from 250 to 2000 Hz. This method may be useful in capturing the most robust frequency region for acoustic reflex detection across postnatal middle ear development. 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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