A Canonical Model of Multistability and Scale-Invariance in Biological Systems
Figure 9
Scale-free bimodal fluctuations in a biophysical model of corticothalmic activity.
Results are shown for fluctuating excitatory field potentials φe. A: Full family of Hopf bifurcations identified by continuing solutions along a 10 Hz instability. B: Candidate sub-critical Hopf bifurcation (red curve in panel A). Stable attractors in black, unstable solutions in red. C: Candidate Power PDF with clear bimodal distribution. D: Corresponding stretched exponential dwell time CDFs. E: Power time series shows erratic switching.