Comparison of causality information of the projected sensor space model with original signals model. 1a. Causality configuration of 5 activation simulated signals as damped oscillators with frequency 10 Hz. 1b. Partial Directed Coherence (PDC) of the original simulated signals through an order 10 MVAR. 1c. Directed Transfer Function from sensor space MVAR model projected in source space through Leadfield pseudoinverse. 1d. Partial Directed Coherence from sensor space MVAR model projected in source space through Leadfield pseudoinverse.