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. Author manuscript; available in PMC: 2010 May 1.
Published in final edited form as: Vision Res. 2008 Apr 10;49(10):1045–1064. doi: 10.1016/j.visres.2008.02.022

Figure 12.

Figure 12

Functions analogous to spatial tuning functions are illustrated that are appropriate for two different models of the selection process. In the top panel, relative sensitivity is plotted as a function of separation. This is an example of a spatial sensitivity function. In the bottom panel, upper asymptote is plotted as a function of separation. This is a spatial asymptote function that is appropriate to the all-or-none mixture model.