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Average Contingent Negative Variation (CNV) amplitude for experts and novices for the four trial type conditions with standard error bars. Experts have larger CNV amplitudes across trial types compared to novices (p=0.00004). Across expertise groups, Correct No-Go trials were significantly different from Incorrect No-Go trials (p=0.003) and significantly different from Incorrect Go trials (p=0.019). In addition, correct versus incorrect trials were also significant (p=0.0098).
