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Proceedings Paper

Computer animation of the electrical activity of the brain: a color display of EEG local and interregional coherence
Author(s): Roland Lamer; Denis Lacroix; Jean Meunier
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Paper Abstract

We study changes of EEG coherence induced by cognitive activation of the brain in healthy subjects. Coherence is considered a correlation coefficient between two electrical signals and may reflect the functional relationships between brain areas. Local coherence is calculated on paired adjacent scalp EEG electrodes whereas inter- regional coherence also includes nonadjacent paired electrodes. We developed a color computer animation display method allowing us to visualize the intensity and regional spatial distribution of coherence changes in time during a cognitive activation process.

Paper Details

Date Published: 24 May 1995
PDF: 8 pages
Proc. SPIE 2433, Medical Imaging 1995: Physiology and Function from Multidimensional Images, (24 May 1995); doi: 10.1117/12.209700
Show Author Affiliations
Roland Lamer, Univ. de Montreal (Canada)
Denis Lacroix, Hopital Notre-Dame (Canada)
Jean Meunier, Univ. de Montreal (Canada)


Published in SPIE Proceedings Vol. 2433:
Medical Imaging 1995: Physiology and Function from Multidimensional Images
Eric A. Hoffman, Editor(s)

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