Fig. 5From: Phase-Amplitude Descriptions of Neural Oscillator Models f 1 , f 2 , and A for the ML model, evaluated at ρ=−0.1. We clearly see the difference in the order of magnitude between f 1 and f 2 for small ρ. Note that, although the average of A over one period is negative, it is positive for a non-trivial interval of θ. This corresponds to movement close to the stable manifold of the saddle node. Parameter values as in Appendix B.1Back to article page