Fig. 4: Large-scale alpha phase locking. | Communications Biology

Fig. 4: Large-scale alpha phase locking.

From: Biophysical mechanism underlying compensatory preservation of neural synchrony over the adult lifespan

Fig. 4

a Model overview-DTI connectivity and distribution of inter-node distances. Equations governing node dynamics. b Distribution of natural frequencies. Green spheres represent magnitude of natural frequency. ROI-wise distribution of natural frequencies. c Contour plot indicating isolines for mean frequency (blue) and PLV (red) as a function of global coupling and conduction velocity, Noise amplitude (d) = 3, ωmax = 12 Hz, ωmin = 8 Hz. PLV and PAF remain constant along isolines. d Metastability measured as the standard deviation of the order parameter plotted as a function of conduction velocity and global coupling. Dotted line indicates PLV isoline. Asterisk corresponds to region with maximum metastability. e Distribution of metastability in the parameter space. Asterisk in heatmap corresponds to second mode of the gaussian. f Distribution of conduction delays (in ms), for conduction velocity = 5, 10, 15.20 m/s. g Frequency depression along isolines corresponding to PLV = 0.2, 0.3, and 0.4.

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