It comes from this part of the code for the Iowa Gambling Task:
if ((expInfo[‘version’]) == ‘1’): #this is the AB version
A_List = [100, 100, -50, 100, -200, 100, -100, 100, -150, -250, 100, -250, 100, -150, -100, 100, -200, -50, 100, 100, 100, -200, 100, -250, 100, -100, -150, -50, 100, 100, -250, -100, -150, 100, 100, 100, -50, -200, 100, 100]
B_List = [100, 100, 100, 100, 100, 100, 100, 100, -1150, 100, 100, 100, 100, -1150, 100, 100, 100, 100, 100, 100, -1150, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, -1150, 100, 100, 100, 100, 100, 100, 100, 100]
C_List = [50, 50, 0, 50, 0, 50, 0, 50, 0, 0, 50, -25, -25, 50, 50, 50, -25, -25, 50, 0, 50, 50, 50, 0, -25, 0, 50, 50, -25, 0, 50, 50, 50, -25, -25, 50, -25, 50, 0, -25]
D_List = [50, 50, 50, 50, 50, 50, 50, 50, 50, -200, 50, 50, 50, 50, 50, 50, 50, 50, 50, -200, 50, 50, 50, 50, 50, 50, 50, 50, -200, 50, 50, 50, 50, 50, -200, 50, 50, 50, 50, 50]
elif ((expInfo[‘version’]) == ‘2’): #this is the BD version
A_List = [50, 50, 0, 50, 0, 50, 0, 50, 0, 0, 50, -25, -25, 50, 50, 50, -25, -25, 50, 0, 50, 50, 50, 0, -25, 0, 50, 50, -25, 0, 50, 50, 50, -25, -25, 50, -25, 50, 0, -25]
B_List = [100, 100, -50, 100, -200, 100, -100, 100, -150, -250, 100, -250, 100, -150, -100, 100, -200, -50, 100, 100, 100, -200, 100, -250, 100, -100, -150, -50, 100, 100, -250, -100, -150, 100, 100, 100, -50, -200, 100, 100]
C_List = [50, 50, 50, 50, 50, 50, 50, 50, 50, -200, 50, 50, 50, 50, 50, 50, 50, 50, 50, -200, 50, 50, 50, 50, 50, 50, 50, 50, -200, 50, 50, 50, 50, 50, -200, 50, 50, 50, 50, 50]
D_List = [100, 100, 100, 100, 100, 100, 100, 100, -1150, 100, 100, 100, 100, -1150, 100, 100, 100, 100, 100, 100, -1150, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, -1150, 100, 100, 100, 100, 100, 100, 100, 100]
A1 = (A_List[:])
B1 = (B_List[:])
C1 = (C_List[:])
D1 = (D_List[:])
A2 = (A_List[:])
B2 = (B_List[:])
C2 = (C_List[:])
D2 = (D_List[:])
A3 = (A_List[:])
B3 = (B_List[:])
C3 = (C_List[:])
D3 = (D_List[:])