Extended Data Fig. 8: Summary statistics of time scales, locality, and synapse properties.

(a) Angle in complex plane of eigenvalues associated with eigencircuits plotted as a function of eigencircuit rank (w.r.t. eigenvalue magnitude). The angle 0 implies the slowest possible dynamics where eigencircuit monotonically decays. The angle 180 implies the fastest possible dynamics where the sign of the eigencircuit flips at every discrete time step. (b) Histogram of angles. (c) Average synapse count of excitatory neurons that form synapses in the top 75% of eigenvector loading (red), average for inhibitory (blue), and across both (black). (d) Plot of the fraction of excitatory synapses of all synapses formed in the top 75% of eigenvector loading of each eigencircuit as a function of time scale (eigenvalue angle). (e) Locality index, fraction of synapses in one neuronpil for the top 75% of eigenvector loadings of eigenvector loading of each eigencircuit. (f) Cumulative distribution of (E).