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Auditory brainstem and middle latency responses recorded at fast rates with randomized stimulation.

Identifieur interne : 000A97 ( Ncbi/Curation ); précédent : 000A96; suivant : 000A98

Auditory brainstem and middle latency responses recorded at fast rates with randomized stimulation.

Auteurs : Joaquin T. Valderrama [Espagne] ; Angel De La Torre [Espagne] ; Isaac M. Alvarez [Espagne] ; Jose C. Segura [Espagne] ; A Roger D. Thornton [Royaume-Uni] ; Manuel Sainz [Espagne] ; Jose L. Vargas [Espagne]

Source :

The Journal of the Acoustical Society of America [ 1520-8524 ] ; 2014.

RBID : pubmed:25480070

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English descriptors

Abstract

Randomized stimulation and averaging (RSA) allows auditory evoked potentials (AEPs) to be recorded at high stimulation rates. This method does not perform deconvolution and must therefore deal with interference derived from overlapping transient evoked responses. This paper analyzes the effects of this interference on auditory brainstem responses (ABRs) and middle latency responses (MLRs) recorded at rates of up to 300 and 125 Hz, respectively, with randomized stimulation sequences of a jitter both greater and shorter than the dominant period of the ABR/MLR components. Additionally, this paper presents an advanced approach for RSA [iterative-randomized stimulation and averaging (I-RSA)], which includes the removal of the interference associated with overlapping responses through an iterative process in the time domain. Experimental results show that (a) RSA can be efficiently used in the recording of AEPs when the jitter of the stimulation sequence is greater than the dominant period of the AEP components, and (b) I-RSA maintains all the advantages of RSA and is not constrained by the restriction of a minimum jitter. The significance of the results of this study is discussed.

DOI: 10.1121/1.4900832
PubMed: 25480070

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<term>Auditory Threshold</term>
<term>Brain Stem</term>
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<keywords scheme="MESH" xml:lang="en"><term>Acoustic Stimulation</term>
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<term>Electroencephalography</term>
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<front><div type="abstract" xml:lang="en">Randomized stimulation and averaging (RSA) allows auditory evoked potentials (AEPs) to be recorded at high stimulation rates. This method does not perform deconvolution and must therefore deal with interference derived from overlapping transient evoked responses. This paper analyzes the effects of this interference on auditory brainstem responses (ABRs) and middle latency responses (MLRs) recorded at rates of up to 300 and 125 Hz, respectively, with randomized stimulation sequences of a jitter both greater and shorter than the dominant period of the ABR/MLR components. Additionally, this paper presents an advanced approach for RSA [iterative-randomized stimulation and averaging (I-RSA)], which includes the removal of the interference associated with overlapping responses through an iterative process in the time domain. Experimental results show that (a) RSA can be efficiently used in the recording of AEPs when the jitter of the stimulation sequence is greater than the dominant period of the AEP components, and (b) I-RSA maintains all the advantages of RSA and is not constrained by the restriction of a minimum jitter. The significance of the results of this study is discussed.</div>
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Auditory brainstem and middle latency responses recorded at fast rates with randomized stimulation.

Auditory brainstem and middle latency responses recorded at fast rates with randomized stimulation.

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Links to Exploration step

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

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Pour générer des pages wiki