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. Author manuscript; available in PMC: 2009 Aug 25.
Published in final edited form as: Psychol Aging. 2008 Dec;23(4):900–916. doi: 10.1037/a0013930

Figure 2.

Figure 2

The top panel shows the time course of events in the experimental paradigm. The bottom panel shows how a response time (RT) distribution can be constructed from quantile RTs (on the x-axis) drawing equal area rectangles between the .1, .3, .5, .7, and .9 quantile RTs and rectangles of half the area at the extremes.