Bifurcation diagram. Bifurcation diagram in the (K
)-plane. The coupling strength from the cortex to the thalamus has been set to K
=1.2 and the coupling strength K
from the thalamus to the cortex is varied; Hz and Hz. Red line: stable fixed points (x
), black line: unstable fixed points; green filled circles represent the maximum and minimum of stable periodic orbits (x
) while the blue circles represent the maximum and minimum of unstable periodic orbits (x
). Bifurcation points, i.e. the fold limit cycle bifurcation (FLB) at and the Hopf-bifurcation (HB) at are marked with vertical blue lines. The light blue box represents the parameter region where the initially synchronized system desynchronizes in finite time (like in Figure 1).