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Feedback-related brain potential waveforms for positive (i.e., gains) and negative feedback (i.e., losses). Averaged feedback-locked event-related brain potential (ERP) waveforms are presented for recording sites FCz and CPz. ERPs for positive feedback (i.e., gains) are depicted in the left columns and for negative feedback (i.e., losses) in the right column. Waveforms for high-risk decisions (solid line) and for low-risk-decisions (dashed line) are overlaid.
