12.07.2015 Views

Dynamical Systems in Neuroscience:

Dynamical Systems in Neuroscience:

Dynamical Systems in Neuroscience:

SHOW MORE
SHOW LESS
  • No tags were found...

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

376 Burst<strong>in</strong>gsubcriticalAndronov-Hopfbifurcationfold limitcycle bifurcationsubcriticalAndronov-Hopfbifurcationfold limit cyclebifurcationFigure 9.36: “SubHopf/fold cycle” burster: The middle equilibrium correspond<strong>in</strong>g tothe rest<strong>in</strong>g state loses stability via subcritical Andronov-Hopf bifurcation, and the outerlimit cycle attractor correspond<strong>in</strong>g to repetitive spik<strong>in</strong>g disappears via fold limit cyclebifurcation. Top two images are different views of the same 3-D structure.r1r1-1-10 uslow passageeffect0 ur(t)Re z(t)r(t)Re z(t)Figure 9.37: Phase portrait and solution of the canonical model (9.11) for µ = 0.1, ω =3, and a = 0.25 (top) and a = 0.8 (bottom), where r = |z| is the amplitude of oscillation(modified from Izhikevich 2000).

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!