This program simulates Watson (2017)'s forth example: "Contrast sensitivity function {2, 3, 2}".

Watson wrote that:

In this example, we illustrate a case of multiple stimulus dimensions. The example describes rapid estimation of a parametrically defined contrast sensitivity function. Our approach is effectively the same as that of Lesmes et al. (2010) except that we use a different model for the contrast sensitivity function. Our main point is to show that their qCSF method can be easily accommodated into the QUEST+ framework.

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