Results of the behavioral study.

(A) RT histograms of buy (blue) and reject (red) decisions, and the decision to sample more information (green) together with model predictions of M1*evidence. The left panels show RTs measured from the onset of the first rating, the right panels show RTs measured from the onset of the rating at which the response was given. Note that the alternating pattern of de- and increases is washed out by the variable latency of the decision to sample more information (in contrast to the fixed duration per rating in the EEG study). (B) Correlation between the threshold parameter and mean RT of the decision to sample more information.