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(A) Fraction of active connections in the SORN, starting from a random connected graph with 0.1 active connections. It exhibits three self-organization phases: decay, growth, and stable. (B) Activity threshold θ for a typical snapshot of SORN activity a(t) (150 time steps). Avalanche duration is indicated in blue and avalanche size in shaded red. The neuronal avalanches were measured only during the stable phase.
