Modelling brain cortical connectivity using diffusion adaptation

This work examines the flow of information among electrodes attached to the brain and uses diffusion adaptation strategies to assess brain cortical connectivity. The method uses the directed transfer function (DTF) technique to estimate combination coefficients to drive the adaptation and learning process. The diffusion strategy is then applied to the problem of recognizing left and right hand movements and its superior performance is demonstrated relative to solutions that rely on stand-alone electrodes and do not exploit coordination among multiple electrodes.