The models for the paper:

Phillips AJ, Robinson PA (2007) A quantitative model of sleep-wake dynamics based on the physiology of the brainstem ascending arousal system. J Biol Rhythms 22:167-79[PubMed]

are available at the website:

Example: Open the supplied model file in opencor. Change the ending point to 48 Hours, the point interval to 0.01, and open two graphs (click plus sign twice). For the first graph right-clicking Vm in m list (select Plot against intergration variable), and for the second right click V and select to plot against -> D ->D. Finaly run (click upper left play triangle) creates the following graph similar to fig 3's inset and dotted lines: