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Two-dimensional spectral processing of sequential evoked potentials.

A LeBron Paige·O Ozdamar·R E Delgado
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Abstract

The processing of sequential evoked potentials (EPs) is investigated using two-dimensional processing techniques. Two-dimensional EP arrays or images are formed by stacking sequential recordings. Processing is accomplished in the frequency domain by 2-D low-pass filtering using Gaussian filters. Auditory brainstem responses (ABRs), which are the early auditory EPs, are used to investigate the effects of the 2-D filtering on real data. Gaussian filtering improves signal-to-noise ratios by reducing high frequency noise effectively in both intra-EP and inter-EP dimensions. Applications to intra-operative monitoring are simulated with real ABR data.

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Evoked Potentials, Auditory, Brain StemHumansMonitoring, IntraoperativeSignal Processing, Computer-AssistedJournal ArticleResearch Support, U.S. Gov't, P.H.S.

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A LeBron Paige, O Ozdamar, R E Delgado. 1996. Two-dimensional spectral processing of sequential evoked potentials.. https://doi.org/10.1007/bf02520080

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