Table 2.

The pay-off distributions of the Iowa Gambling Task and Soochow Gambling Task for the first 10 trials, adapted from Ahn et al. (2008).

IGT	A	B	C	D	SGT	A	B	C	D
Expected value of 10 trials	−$2.50	−$2.50	$2.50	$2.50	Expected value of five trials	−$2.50	−$2.50	$2.50	$2.50
Gain on every trial	$1.00	$1.00	$0.50	$0.50	Gain on every trial	$1.00	$0.50	−$1.00	−$0.50
Loss on each trial					Loss on each trial
Trial 1								−$1.00	−$0.50
Trial 2								−$1.00	−$0.50
Trial 3								−$1.00	−$0.50
Trial 4								−$1.00	−$0.50
Trial 5						−$5.25	−$3.25
Trial 6	−$1.50		−$0.25					−$1.00	−$0.50
Trial 7	−$2.00		−$0.75					−$1.00	−$0.50
Trial 8	−$2.50		−$0.50					−$1.00	−$0.50
Trial 9	−$3.00		−$0.50					−$1.00	−$0.50
Trial 10	−$3.50	$12.50	−$0.50	−$2.50		−$5.25	−$3.25