The entire relationship from node training, amplitude and you can dPLI is additionally displayed in this modeled mental faculties system
Fig 4E and you may 4F establish the relationship between your node knowledge of the anatomical attention community and you may dPLI of your alpha oscillators as a band patch
Fig 4A and 4C clearly demonstrate a negative correlation between node degree and dPLI (Spearman correlation coefficient = – 0.61, p<0.01) and positive correlation between node degree and amplitude of oscillators (Spearman correlation coefficient = 0.92, p<0.01) at coupling strength S = 3. As predicted, higher degree nodes have higher amplitude and stronger incoming directionality than lower degree nodes (dPLI<0). Fig 4B and 4D show that after the perturbation (? = 1), the correlations among node degree, amplitude and dPLI disappear. The homogenized network does not produce any biases in the directionality and amplitude distribution in the modeled brain. In the anatomical brain network, the parietal-occipital regions have the higher node degrees (presented as dense and dark connections). Notably, the left and right precuneus in the parietal region have the highest node degrees (denoted with red arrows in Fig 4E), while the lower node degrees are mostly distributed in the frontal region. The functional network strongly correlates with the anatomical network. Accordingly, the two precuneus regions have the largest negative dPLI values, playing a role as the strongest target of directionality, and the typical overall network topology produces the dominant directionality from frontal region (as source; red color (dPLI>0) in the ring in Fig 4E) to the parietal-occipital region (as sink; blue color (dPLI<0) in the ring in Fig 4E). However, after perturbing the heterogeneous human network to a homogeneous functional network topology, the typical patterns in amplitude and directionality are neutralized (presented as the same green color (dPLI
Also, the latest perturbed circle topology that have preferential middle disruption produces homogenized designs during the amplitude and you can directionality along the network
The newest Stuart-Landau model is artificial on the peoples anatomical notice network ahead of ((A), (C) and you may (E)) and you can just after ((B), (D) and (F)) perturbation having preferential disturbance out of center nodes. The fresh solid negative correlations between node education and you will dPLI for the (A) and the strong positive relationship between node training and you can amplitude when you look at the (C) drop off regarding the perturbed homogeneous system ((B) and you will (D)). Average dPLI for every single node was calculated by the averaging new dPLI thinking of each node when it comes to another nodes. The fresh anatomical associations of various brain regions is showed inside the (E) and you may (F) ring plots of land plus average dPLI value for every region. (more…)