Auditory steady-state responses (ASSR): effects of modulation and carrier frequencies.
Presented are results relevant to extending the utility of the auditory steady-state response (ASSR) in threshold estimation at high-frequency carriers and to the accuracy of thresholds estimated using modulation frequencies near 40 versus 80 Hz. Initially, efforts were directed at confirming variou...
| Publicado en: | International Journal of Audiology Vol. 44; no. 10; pp. 567 - 574 |
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| Autores principales: | , , |
| Formato: | research tables/charts Journal Article |
| Publicado: |
Taylor & Francis Ltd
Oct2005
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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=106405707&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 106405707 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 14992027 JW2 jtl: International Journal of Audiology issn: 14992027 maglogo: Y pubinfo: dt: Oct2005 vid: 44 iid: 10 pid: 377 pub: Taylor & Francis Ltd place: Philadelphia, Pennsylvania artinfo: ui: 106405707 2009073246 10.1080/14992020500258560 NLM16315447 106405707 ppf: 567 ppct: 7 formats: fmt: @attributes: type: P tig: atl: Auditory steady-state responses (ASSR): effects of modulation and carrier frequencies. aug: au: Petitot C Collet L Durrant JD affil: Laboratoire Neurosciences et Systèmes Sensoriels, Lyon, France sug: subj: Audiometry, Evoked Response Evoked Potentials, Auditory, Brainstem Adolescence Adult Aged Auditory Threshold Correlation Coefficient Descriptive Statistics Evaluation Research Female Funding Source Male Middle Age Post Hoc Analysis Human Adolescent: 13-18 years Adult: 19-44 years Aged: 65+ years Middle Aged: 45-64 years Female Male ab: Presented are results relevant to extending the utility of the auditory steady-state response (ASSR) in threshold estimation at high-frequency carriers and to the accuracy of thresholds estimated using modulation frequencies near 40 versus 80 Hz. Initially, efforts were directed at confirming various findings reported in the literature apropos effects of several basic ASSR parameters. Results supplement others' observations suggesting that ASSR detection limits overestimate behavioral thresholds for conventional audiometric (carrier) frequencies from 500 to 4000 Hz. Further investigation revealed even greater errors of threshold estimates for 8000 and 12000 Hz, by about 14 and 22 dB on average, respectively. Although suggesting high-frequency ASSR testing to be efficacious, technical advances and additional work is needed to establish clinical utility. Comparison of effects of modulation frequency suggested ASSR thresholds with 40 Hz modulation to fall closer to behavioral threshold than those estimated at 80 Hz. Consequently, when circumstances permit, 40 Hz ASSR testing may be the method of choice (e.g. in the assessment of malingers, who may be tested awake/alert). pubtype: Academic Journal doctype: research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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