Spatial Detection of Multiple Movement Intentions from SAM-Filtered Single-Trial MEG for a high performance BCI

SPATIAL DETECTION OF MULTIPLE MOVEMENT INTENSIONS FROM SAMFILTERED SINGLE TRIAL MEG SIGNALS FOR A HIGH PERFORMANCE BCI By Harsha Battapady, M.S. A Thesis submitted in partial fulfillment of the requirements for the degree of Master in Sciences at Virginia Commonwealth University. Virginia Commonwealth University, 2009 Major Director: Dr. Ou Bai Assistant Professor, Dept. of Biomedical Engineering The objective of this study is to test whether human intentions to sustain or cease movements in right and left hands can be decoded reliably from spatially filtered single trial magneto-encephalographic (MEG) signals. This study was performed using motor execution and motor imagery movements to achieve a potential high performance BrainComputer interface (BCI). Seven healthy volunteers, naïve to BCI technology, participated in this study. Signals were recorded from 275-channel MEG and synthetic aperture

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