Fig. 3: Functional hierarchy across different tasks and rest.
From: Revisiting the global workspace orchestrating the hierarchical organization of the human brain
a, Cortical renderings of all seven tasks and rest for the incoming (Gin), outgoing (Gout) and total (Gtot) directional information flow computed from the NDTE matrix of 1,003 HCP participants (see Fig. 1 and Methods) in the DK80 parcellation (using 3D views from the side and midline). b, Matrices of the comparison of incoming (Gin), outgoing (Gout) and total (Gtot) directional information flows in the seven tasks and rest. As can be clearly seen, the Gin matrix and the renderings of the incoming flows of information (receivers) are significantly different between tasks and rest. This suggests that different tasks process incoming flows differently. This is in contrast to the Gout matrix and the renderings of the outgoing flows of information (drivers), which are similar. This shows that sensory areas are consistently driving the information flow. Interestingly, as can be seen from the Gtot matrix, the total processing of information flow is more similar within the seven tasks than compared with rest, suggesting the extrinsic, sensory nature of task processing compared with the intrinsic nature of resting-state processing.
