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. Author manuscript; available in PMC: 2016 Jul 8.
Published in final edited form as: Brain. 2016 Apr 27;139(Pt 6):1830–1843. doi: 10.1093/brain/aww075

Figure 1. Behavioural task and performance.

Figure 1

(A) Schematic depiction of the task. (B) The proportion of accepted trials is shown as a function of the effort required (x-axis), the reward condition (pink: 5 c, red: 20 c, orange: €1) and the treatment condition (ON: solid; OFF: dashed). (C) Subjective value of reward as a function of the objective reward amount. Error bars indicate the standard error of the mean. (D) Subjective cost of effort as a function of the effort level. (E) The reaction time is plotted as a function of certainty. Each dot corresponds to an accepted trial, and each shape is specific to a particular subject. The red lines indicate the 95% confidence interval around the line of regression.