Comparison between Computational Geometry and Coherence Methods applied to the EEG for Medical Diagnostic Purposes

The examination of differences in intra-hemispheric coherence and a novel method based on computational geometric algorithms between the left and right hemispheres of the same EEG. The Coherence and Computational geometry methods are computed from the same EEG segment and especially in the alpha and beta activities. The Results of the application of Coherence and Computational geometry methods showed that beta activity differed dramatically in the occipital intra-hemisphere. In conclusion, Computational Geometry method showed that it can give an accurate solution for EEG medical diagnostic purposes, especially in those patient cases which present severe asymmetric brain damage. Key-Words: Computational Geometry, Coherence, EEG, Algorithm, Power Spectrum, Signal Processing.