Selective processing of auditory evoked responses with iterative-randomized stimulation and averaging: A strategy for evaluating the time-invariant assumption.
Identifieur interne : 000013 ( Main/Exploration ); précédent : 000012; suivant : 000014Selective processing of auditory evoked responses with iterative-randomized stimulation and averaging: A strategy for evaluating the time-invariant assumption.
Auteurs : Joaquin T. Valderrama [Australie] ; Angel De La Torre [Espagne] ; Carlos Medina [Espagne] ; Jose C. Segura [Espagne] ; A Roger D. Thornton [Royaume-Uni]Source :
- Hearing research [ 1878-5891 ] ; 2016.
Abstract
The recording of auditory evoked potentials (AEPs) at fast rates allows the study of neural adaptation, improves accuracy in estimating hearing threshold and may help diagnosing certain pathologies. Stimulation sequences used to record AEPs at fast rates require to be designed with a certain jitter, i.e., not periodical. Some authors believe that stimuli from wide-jittered sequences may evoke auditory responses of different morphology, and therefore, the time-invariant assumption would not be accomplished. This paper describes a methodology that can be used to analyze the time-invariant assumption in jittered stimulation sequences. The proposed method [Split-IRSA] is based on an extended version of the iterative randomized stimulation and averaging (IRSA) technique, including selective processing of sweeps according to a predefined criterion. The fundamentals, the mathematical basis and relevant implementation guidelines of this technique are presented in this paper. The results of this study show that Split-IRSA presents an adequate performance and that both fast and slow mechanisms of adaptation influence the evoked-response morphology, thus both mechanisms should be considered when time-invariance is assumed. The significance of these findings is discussed.
DOI: 10.1016/j.heares.2015.12.009
PubMed: 26778545
Affiliations:
- Australie, Espagne, Royaume-Uni
- Andalousie, Nouvelle-Galles du Sud
- Grenade (Espagne), Sydney
- Université de Grenade
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Le document en format XML
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Valderrama</name><affiliation wicri:level="3"><nlm:affiliation>National Acoustic Laboratories, Australian Hearing Hub, 16 University Avenue, Macquarie University, NSW 2109, Sydney, Australia. Electronic address: joaquin.valderrama@nal.gov.au.</nlm:affiliation><country xml:lang="fr">Australie</country><wicri:regionArea>National Acoustic Laboratories, Australian Hearing Hub, 16 University Avenue, Macquarie University, NSW 2109, Sydney</wicri:regionArea><placeName><settlement type="city">Sydney</settlement><region type="état">Nouvelle-Galles du Sud</region></placeName></affiliation></author><author><name sortKey="De La Torre, Angel" sort="De La Torre, Angel" uniqKey="De La Torre A" first="Angel" last="De La Torre">Angel De La Torre</name><affiliation wicri:level="4"><nlm:affiliation>Department of Signal Theory, Telematics and Communications, CITIC-UGR, University of Granada, C/ Periodista Daniel Saucedo Aranda s/n, Granada 18071, Spain. 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Some authors believe that stimuli from wide-jittered sequences may evoke auditory responses of different morphology, and therefore, the time-invariant assumption would not be accomplished. This paper describes a methodology that can be used to analyze the time-invariant assumption in jittered stimulation sequences. The proposed method [Split-IRSA] is based on an extended version of the iterative randomized stimulation and averaging (IRSA) technique, including selective processing of sweeps according to a predefined criterion. The fundamentals, the mathematical basis and relevant implementation guidelines of this technique are presented in this paper. The results of this study show that Split-IRSA presents an adequate performance and that both fast and slow mechanisms of adaptation influence the evoked-response morphology, thus both mechanisms should be considered when time-invariance is assumed. The significance of these findings is discussed.</div></front></TEI><affiliations><list><country><li>Australie</li><li>Espagne</li><li>Royaume-Uni</li></country><region><li>Andalousie</li><li>Nouvelle-Galles du Sud</li></region><settlement><li>Grenade (Espagne)</li><li>Sydney</li></settlement><orgName><li>Université de Grenade</li></orgName></list><tree><country name="Australie"><region name="Nouvelle-Galles du Sud"><name sortKey="Valderrama, Joaquin T" sort="Valderrama, Joaquin T" uniqKey="Valderrama J" first="Joaquin T" last="Valderrama">Joaquin T. Valderrama</name></region></country><country name="Espagne"><region name="Andalousie"><name sortKey="De La Torre, Angel" sort="De La Torre, Angel" uniqKey="De La Torre A" first="Angel" last="De La Torre">Angel De La Torre</name></region><name sortKey="Medina, Carlos" sort="Medina, Carlos" uniqKey="Medina C" first="Carlos" last="Medina">Carlos Medina</name><name sortKey="Segura, Jose C" sort="Segura, Jose C" uniqKey="Segura J" first="Jose C" last="Segura">Jose C. Segura</name></country><country name="Royaume-Uni"><noRegion><name sortKey="Thornton, A Roger D" sort="Thornton, A Roger D" uniqKey="Thornton A" first="A Roger D" last="Thornton">A Roger D. Thornton</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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