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. 2014 Jan 2;592(Pt 4):571–586. doi: 10.1113/jphysiol.2013.266015

Figure 2.

Figure 2

A, a decrease in the magnitude of facilitation (ΔF) causes a decrease in paired pulse facilitation with no change in the initial release probability. B, a decrease in the number of readily releasable vesicles (RRP) and increase in the release probability per vesicle (Pr/v) also causes a decrease in paired pulse facilitation with no change in the initial release probability. Model is from Sun et al. (2005); parameter values held constant are given in Table 1. In A, RRP = 5.1, Pr/v = 0.039. In B, ΔF = 0.063.