In the Damasio experiment the procedure is different. The subjects do not sit in front of a screen but in front of 4 decks of cards. Two of those decks are risky decks and loose in the long run and two decks are advantageous in the long riun. So the subject is requested to take a card from one of the decks and to determine which strategy is the best. Note that the time before they take the card is variable unlike in the presentiment experiments.