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ERP waveforms depicting the RewP for incentive (noted with solid lines) and no-incentive cued trials (noted with dashed lines) measured in microvolts (μV) at FCz. ERP waveforms and differences scores are depicted separately for good performance (noted in black) and bad performance (noted in red). Note: We quantified the RewP by calculating the mean amplitude at ± 50 ms around the peak (i.e., 216–316 ms).
