Before revision:  In this case the at the crossover point we found \tau_t \simeq 1.9(2), which is in the range of human brain experiments.abstract \le 
After revision:  In this case the at the crossover point we found \tau_t \simeq 1.9(2), which is in the range of human brain experiments.abstract \le 2, overlapping with the range of human brain experiments. We also studied the effects of random flipping of a small portion of link weights, mimicking a network with inhibitory interactions, and found similar results. The control-parameter dependent exponent suggests extended dynamical criticality below the transition point.