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. Author manuscript; available in PMC: 2008 Aug 1.
Published in final edited form as: J Math Biol. 2007 Dec 14;57(2):161–181. doi: 10.1007/s00285-007-0150-2

Fig. 5.

Fig. 5

Behavior of LP and PY when only AB inhibition is present. A. Phase curves for LP and PY show a stereotypical cubic shape indicating that different mechanisms and parameters control phase at different periods. B. The value of dAB,max increases with period. The strengthening of the feed-forward AB synapses for P > 600 causes the control of phase (as shown in panel A) to switch from the LP and PY intrinsic mechanisms to the AB synapses.