Fig. 5.

Analysis of the residuals R₁₂ for cognitive subtraction and MLCS for the different task conditions. In the case of uncoupled sources (left column), the residual is null for both the cognitive subtraction and the MLCS. In the case of recruitment (right column), both methods identify a residual in the posterior regions. In the case of temporal modulation however (center column), MLCS shows that there are no other spatial modes recruited during the task while cognitive subtraction shows residual activity. λ represents the eigenvalue of the corresponding spatial mode normalized to 1.