A Postdecisional Neural Marker of Confidence Predicts Information-Seeking in Decision-Making.

This analysis revealed that, in marked contrast to the preresponse epoch, it was possible to classify see again choices reliably across the entire epoch from the initial task response to the subsequent see again choice: There was a highly significant cluster that began just before primary response execution ( Fig. 5 C ; p < 0.001, cluster level) and peaked just before the decision of whether or not to sample more information ( Fig. 5 D ; p < 0.001, cluster level).

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Mean accuracy of the final response (regardless of the level of confidence), calculated on the data of the no-choice condition in which participants were forced to respond without viewing the stimulus again, was likewise affected by both color mean ( F (1,14) = 45.55, p < 0.001) and color variance ( F (1,14) = 23.56, p < 0.001), but the interaction failed to reach significance ( F (1,14) = 4.32, p = 0.056).

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