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. 2009 Dec 16;29(50):15675–15683. doi: 10.1523/JNEUROSCI.4943-09.2009

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Copyright © 2009 Society for Neuroscience 0270-6474/09/2915675-09$15.00/0

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Figure 4. — Effect of reward expectation. INC-COR and INC-CO1 difference waves. A, Grand average difference waves for INC-COR in black and INC-CO1 in gray (average between electrodes E5 and E12 between subjects). **p < 0.01, paired t test over sessions for grand average peak data. Maximum peak was measured from the time epoch represented in gray on the x-axis. B, Average amplitude of first positive peak at each step ±SEM. Statistics correspond to paired t test (*p < 0.05) between INC-CO1 and INC-COR.