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Title: Eliciting audio evoked potentials using continuous stimuli
Other Titles: Annual International Conference of the IEEE Engineering in Medicine and Biology Society: 29th: 2007
Sponsor: Higher Education Authority
Irish Research Council for Science Engineering and Technology
Author's Homepage:
Keywords: Auditory Evoked Potentials
Noise input signals
cortical audio evoked potentials
Human auditory system
Issue Date: 2007
Publisher: IEEE
Citation: Power, A. J., Lalor E. C., Reilly, R. B., Eliciting audio evoked potentials using continuous stimuli: [in] proceedings of the 29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society 22-26 Aug 2007, IEEE: 2007, pp4264-426p
Abstract: Noise input signals are commonly used in both linear and non-linear system identification of physiological systems. This method can be applied to electrophysiological analysis of the human auditory system by controlling the modulation of the amplitude of a sound stimulus using a pre-computed noise signal. In this study we describe how one can obtain an estimate of the linear response of the auditory system using noise signals and we compare it to a standard auditory evoked potential (AEP). Two different noise modulated sounds are tested, broadband noise (BBN) and a 2kHz tone. Results show that the BBN is better at eliciting notable responses. Results also show that although the SNR of the proposed response to the modulated BBN is generally lower than the standard AEP the two responses do correlate well suggesting that the spread spectrum stimulus is a valid method for elicitation of an AEP.
Description: PUBLISHED
Appears in Collections:Electronic & Electrical Eng (Scholarly Publications)

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