VOLUME 5 NUMBER 2 (July to December 2012)

by M. C. Faustino¹, R. P. Serquiña², P. E. Rapp³, A. M. Albano⁴*

¹ Department of Mathematics, Xavier University, Cagayan de Oro City, Philippines.
² Department of Mathematics and Statistics, Mindanao State University – Iligan Institute of     Technology, Iligan City, Philippines.
³ Department of Military and Emergency Medicine, Uniformed Services University,
     Bethesda, MD 20814 USA.
⁴ Department of Physics, Bryn Mawr College, Bryn Mawr, PA 19010 USA.

We use Kuramoto's parameter ρ to evaluate thephase synchronization of multichannel EEGrecords at different frequency bands forthirteen human subjects under two behavioralconditions: eyes open resting and eyes closedresting. We report three findings: (1) with eyes open, thedependence of ρ on frequency can be described by a 7th orderpolynomial, and with the eyes closed, by a 6th order polynomial;(2) for all frequency bands, pair-wise synchronization betweenchannels is inversely proportional to inter-electrode distance;and (3) although there are visible differences in averagesynchronization between behavioral conditions, inter-subjectvariations are so great such that the differences are notstatistically significant.