Sequential choice task and response time distributions.

(A) Example trial of the paradigm in the EEG study. Participants were asked to either buy or reject a stock offer based on up to six sequentially presented ratings that provided probabilistic information about the stock's value. They were free to respond at any time but had to trade-off the value of collecting information against the costs for each rating. The amount of costs were presented before the first rating and varied on a trial-by-trial basis. (B) RT histograms for buy (blue) and reject (red) decisions summed over all participants. The left panels show data for all six ratings separately (dashed lines indicate the start of a new rating), the right panels show data summed over ratings.