H. Weinberg, Seth Period of a stable limit cycle in the AFHN model. <p>For , the period of the stable limit cycle is approximately the sum of the time required to traverse the two stable branches of the -nullcline, , denoted by the points and , respectively. As increases, the amplitude and period of the stable limit cycle, indicated by the second set of points labeled , both decrease. See text for description of other variables in figure. Parameters: .</p> afhn 2013-11-20
    https://plos.figshare.com/articles/figure/_Period_of_a_stable_limit_cycle_in_the_AFHN_model_/858419
10.1371/journal.pone.0081402.g011