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. 2010 Oct 14;4:169. doi: 10.3389/fnhum.2010.00169

Figure 4.

Figure 4

Scatterplots depicting the relationship between the daily dosage of levodopa taken by PD patients and performance measures on the reward-based learning tasks (left: number of reversals achieved in the reversal task, right: percentage correct in the learning task with constant reward contingencies).