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 language | English (US) |
---|---|
Pages (from-to) | 239-243 |
Number of pages | 5 |
Journal | Medical and Biological Engineering and Computing |
Volume | 34 |
Issue number | 3 |
DOIs | |
State | Published - May 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