Abstract
The joint use of total and partial coherence between pairs of EEGs simultaneously recorded in a standard set, is shown to enhance what is caused by direct correlation between cortical subsystems and what is instead related to the spread of the electromagnetic field. A multi-variable autoregressive approach is employed in the computation, giving results even for a very short time window, thus allowing coherence to be investigated at the main cortical latencies of evoked potentials. In particular, when a combined visual and somatosensory stimulation is applied, cortical interactions are captured in the frequency domain.
| Original language | English |
|---|---|
| Pages (from-to) | 124-130 |
| Number of pages | 7 |
| Journal | Medical and Biological Engineering and Computing |
| Volume | 35 |
| Issue number | 2 |
| Publication status | Published - 1997 |
Keywords
- Autoregressive processing
- Coherence analysis
- EEG
ASJC Scopus subject areas
- Biomedical Engineering
- Health Informatics
- Health Information Management
- Computer Science Applications
- Computational Theory and Mathematics