Auditory brainstem and middle latency responses recorded at fast rates with randomized stimulation.
Identifieur interne : 000334 ( Main/Exploration ); précédent : 000333; suivant : 000335Auditory 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.
Descripteurs français
- KwdFr :
- Attribution aléatoire, Potentiels évoqués auditifs du tronc cérébral (physiologie), Psychoacoustique, Seuil auditif (physiologie), Simulation numérique, Spectrographie sonore, Stimulation acoustique, Temps de réaction (physiologie), Traitement du signal assisté par ordinateur, Tronc cérébral (physiologie), Voies auditives (physiologie), Électroencéphalographie.
- MESH :
- physiologie : Potentiels évoqués auditifs du tronc cérébral, Seuil auditif, Temps de réaction, Tronc cérébral, Voies auditives.
- Attribution aléatoire, Psychoacoustique, Simulation numérique, Spectrographie sonore, Stimulation acoustique, Traitement du signal assisté par ordinateur, Électroencéphalographie.
English descriptors
- KwdEn :
- Acoustic Stimulation, Auditory Pathways (physiology), Auditory Threshold (physiology), Brain Stem (physiology), Computer Simulation, Electroencephalography, Evoked Potentials, Auditory, Brain Stem (physiology), Psychoacoustics, Random Allocation, Reaction Time (physiology), Signal Processing, Computer-Assisted, Sound Spectrography.
- MESH :
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
Affiliations:
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Le document en format XML
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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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