FIG. 3.
Model representation: (A) Model 1 specifies nonlinear modulation by the DMN on both connections between the SN and CEN, (B) model 2 specifies nonlinear modulation by the SN on both connections between the DMN and CEN, and (C) model 3 specifies nonlinear modulation by the CEN on both connections between the DMN and SN. Color images available online at www.liebertpub.com/brain