Automatic screening and detection of threshold fine structure.
Audiograms measured with a high frequency resolution often show quasi-periodic ripples of up to 15dB in normal-hearing listeners. This fine structure of the threshold in quiet is commonly associated with the active processes in the cochlea. Therefore its absence is discussed in the literature as an...
| Publicado en: | International Journal of Audiology Vol. 47; no. 8; pp. 520 - 533 |
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| Autores principales: | , , |
| Formato: | equations & formulas research tables/charts tracings Journal Article |
| Publicado: |
Taylor & Francis Ltd
Aug2008
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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=105674325&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 105674325 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 14992027 JW2 jtl: International Journal of Audiology issn: 14992027 maglogo: Y pubinfo: dt: Aug2008 vid: 47 iid: 8 pid: 377 pub: Taylor & Francis Ltd place: Philadelphia, Pennsylvania artinfo: ui: 105674325 2010006265 10.1080/14992020802089473 NLM18698525 105674325 ppf: 520 ppct: 13 formats: fmt: @attributes: type: P tig: atl: Automatic screening and detection of threshold fine structure. aug: au: Heise SJ Verhey JL Mauermann M affil: International graduate school 'Neurosensory Science and Systems', University of Oldenburg, Germany. sug: subj: Audiometry Equipment and Supplies Audiometry Methods Auditory Threshold Adult Cochlea Physiology Descriptive Statistics Equipment Design Female Loudness Perception Male Middle Age Otoacoustic Emissions, Spontaneous Physiology Test-Retest Reliability Validation Studies Human Adult: 19-44 years Middle Aged: 45-64 years Female Male ab: Audiograms measured with a high frequency resolution often show quasi-periodic ripples of up to 15dB in normal-hearing listeners. This fine structure of the threshold in quiet is commonly associated with the active processes in the cochlea. Therefore its absence is discussed in the literature as an indicator of cochlear vulnerability. In order to enable a quick detection and an objective quantification of threshold fine structure, two instruments are introduced and evaluated in this article: (1) a high-resolution tracking method for measuring fine structure ('FINESS'), and (2) an automatic fine-structure detector ('FINESS-detector'). The method is tested on 22 subjects for its reliability, its accuracy, and drifts with frequency by analysing test/retest experiments and by comparing the measured thresholds to results from a reference procedure. The results indicate that FINESS and the FINESS-detector are suitable techniques for the measurement and detection of threshold fine structure that may help to investigate further into whether fine structure is a sensitive tool for the detection of an early hearing loss. 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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