Trial sequence of the IGT-C.

Each trial begins with a screen showing two decks and a “wait” message during 6 sec. Participants then select a deck by pressing 1 or 2 (second screen). Following response selection, an outcome screen shows the card selected (2 sec). After that, a new trial starts. The window of interest for SCR measures is shown below the screenshots. The example belongs to a card selected from de disadvantageous deck of the hard version.