Table 3. Payoffs for the Iowa Gambling Task (IGT).

Deck	Win per card	Losses	Expected value per 10 selections
A (disadvantageous)	$1.00	Probability = 0.5 to lose $1.50, $3.00, $2.00, $2.50, or $3.50 (frequent)	-$2.50
B (disadvantageous)	$1.00	Probability = 0.1 to lose $12.50 (infrequent)	-$2.50
C (advantageous)	$0.50	Probability = 0.5 to lose $0.75, $0.25, or $0.50 (frequent)	$2.50
D (advantageous)	$0.50	Probability = 0.1 to lose $2.50 (infrequent)	$2.50

Note. Payoff structures were identical in the Load and No Load conditions.