Two-dimensional spectral processing of sequential evoked potentials

A. LeBron Paige, Ö Özdamar, R. E. Delgado

Research output: Contribution to journalArticle

3 Scopus citations

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.

Original languageEnglish (US)
Pages (from-to)239-243
Number of pages5
JournalMedical and Biological Engineering and Computing
Volume34
Issue number3
DOIs
StatePublished - May 1 1996

Keywords

  • Auditory brainstem response
  • Evoked potentials
  • Intra-operative monitoring
  • Spectral filtering
  • Two-dimensional processing

ASJC Scopus subject areas

  • Health Information Management
  • Health Informatics
  • Biomedical Engineering
  • Computer Science Applications
  • Computational Theory and Mathematics

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