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The waveforms represent the difference waves (i.e. deviation from the mean) of all four conditions. At the time window of 200–400 ms, the separation of waves is based on the valence (loss vs. gain) and is more robust in females. After 400 ms, this separation is based on the amount (50¢ vs. 10¢) and is more robust in males. The vertical lines represent the ORN and ORP peaks (225 ms and 350 ms) respectively.
