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Integrating MEG, EEG and fMRI data

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A further possibility: identification of coupling<br />

direction<br />

Different direction evaluators were used: a Granger causality index (Kaminski et al,<br />

Biological Cybernetics, 2001), as well as two different indexes for the detection of<br />

coupling direction in chaotic oscillators (Rosenblum et al, Phys. Rev. Lett. 2004)<br />

have shown values indicating M1 as generator of the activity which comes to the<br />

cerebellum in case of paretic h<strong>and</strong> use. The cerebellum coherent activity is not<br />

present in case of contralateral (healthy) h<strong>and</strong> use

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