Computer animation of the electrical activity of the brain: a color display of EEG local and interregional coherence

Roland Lamer; Denis Lacroix; Jean Meunier

doi:10.1117/12.209700

24 May 1995 Computer animation of the electrical activity of the brain: a color display of EEG local and interregional coherence

Roland Lamer, Denis Lacroix, Jean Meunier

Author Affiliations +

Proceedings Volume 2433, Medical Imaging 1995: Physiology and Function from Multidimensional Images; (1995) https://doi.org/10.1117/12.209700
Event: Medical Imaging 1995, 1995, San Diego, CA, United States

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.

Citation Download Citation

Roland Lamer, Denis Lacroix, and Jean Meunier "Computer animation of the electrical activity of the brain: a color display of EEG local and interregional coherence", Proc. SPIE 2433, Medical Imaging 1995: Physiology and Function from Multidimensional Images, (24 May 1995); https://doi.org/10.1117/12.209700

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