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. 2011 May 27;5:48. doi: 10.3389/fnhum.2011.00048

Figure 8.

Figure 8

Race model approximation to optimal decision-making as stop error penalty is varied: inhibition function and RT distribution. (A,B) Optimal model. (C,D) Diffusion race model. Left: RT distributions for GO and SE trials. SSD = 15, cs = 0.25, as in Figure 6. Right: Inhibition function for different stop error costs (low: cs = 0.15, med: cs = 0.25, high: cs = 0.5). Results based on 10,000 simulated trials from the optimal model, and also from the corresponding best-fitting diffusion race model.