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PubMed · 8241969

Auditory brainstem responses recorded at fast stimulation rates using maximum length sequences.

A R Thornton·A Slaven
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Abstract

There are now commercially available systems which can provide maximum length sequence averaging techniques. This study examines the effects on auditory brainstem response amplitude and latency of using such a system and stimulating at rates from 9 to 1000 clicks/s. As expected there is considerable adaptation of the response such that at 1000 clicks/s wave V amplitude is only approximately 8% of its low stimulation rate value. As the stimulation rate is increased so the test time taken to obtain a response of the same signal-to-noise ratio as a conventional recording decreases. This process continues up to a maximum click rate of about 200 clicks/s. Thereafter, the response adapts so rapidly that further increases of rate lead to a worsening of performance. Thus, the optimum stimulation rate appears to be of the order of 200 clicks/s and this can give a speed improvement by a factor of approximately 2.8 over conventional recordings taken at 9 or 10 clicks/s.

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Adaptation, PhysiologicalAdultAudiometry, Evoked ResponseAuditory ThresholdElectroencephalographyEvoked Potentials, Auditory, Brain StemHumansReaction TimeSignal Processing, Computer-AssistedTime FactorsJournal Article

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A R Thornton, A Slaven. 1993. Auditory brainstem responses recorded at fast stimulation rates using maximum length sequences.. https://doi.org/10.3109/03005369309076694

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