Table 1 Descriptive data of demographic variables and BART performance in Experiments 1–2 and in an explorative study presented in the Supplementary Material.

From: Adaptation to recent outcomes attenuates the lasting effect of initial experience on risky decisions

Experiment

Explorative study

Experiment 1

Experiment 2

Condition

Lucky long

M(SD)

Lucky short

M(SD)

Unlucky long

M(SD)

Unlucky short

M(SD)

Lucky

M(SD)

Unlucky

M(SD)

Baseline

M(SD)

n

156

20

20

20

20

30

30

30

Gender [Male/female]

26/130

11/9

9/11

11/9

5/15

16/14

14/16

18/12

Age [years]

21.4 (3.9)

22.4 (1.6)

21.0 (1.1)

22.2 (1.3)

21.8 (1.3)

21.5 (1.6)

21.6 (1.6)

21.1 (1.4)

Education [years]

14.6 (2.1)

15.5 (1.3)

14.2 (0.9)

15.0 (1.1)

15.2 (0.9)

14.8 (1.4)

14.9 (1.4)

14.8 (1.6)

Mean adjusted pumps

8.3 (2.3)

8.7 (1.7)

9.3 (1.3)

5.7 (0.9)

6.5 (0.9)

8.1 (2.4)

7.1 (1.4)

7.9 (2.4)

Number of balloon bursts

12.4 (4.1)

11.3 (5.3)

14.2 (4.3)

10.1 (3.2)

9.8 (2.2)

12.1 (4.5)

9.5 (3.2)

11.0 (4.3)

Total score

711.7 (256.4)

797.2 (146.4)

758.6 (127.1)

405.1 (83.3)

517.0 (91.3)

651.1 (153.0)

624.0 (153.8)

644.6 (142.9)

  1. In Experiment 1, BART variables were calculated for the whole task (30 balloons), which included the initial phase with experimental manipulation (biased balloon characteristics). In Experiment 2, BART variables were calculated for the subsequent phase (30 unbiased balloons).