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. Author manuscript; available in PMC: 2009 May 3.
Published in final edited form as: J Cogn Neurosci. 2009 Feb;21(2):289–302. doi: 10.1162/jocn.2009.21047

Figure 3.

Figure 3

Mean parameter estimates (Wagenmakers, van der Maas, & Grasman, 2007) of task switching performance, as a function of age group and repeat versus switch trials. Panel A = the drift rate parameter (v), representing the quality of decision processing; Panel B = the nondecision time parameter (T-er), representing perceptual encoding and response time.