Table 2.

The number of trials required to reach criterion performance in reversal by individual subjects across each ascertainment

Subject	Exposure group	Baseline	3 week assessment	5 d postexposure	1 week postexposure	3 weeks postexposure
A9727	Saline	50	41	70	32	59
B9721	Saline	20	13	13	50	42
H0271	Saline	30	37	16	27	16
I0221	Saline	55	34	38	47	43
L0441	Saline	24	17	8	18	21
N0406	Saline	9	10	21	70	22
C9726	Methamphetamine	22	24	17	44	70
D9802	Methamphetamine	49	70	33	70	70
E0241	Methamphetamine	12	48	11	26	19
G0261	Methamphetamine	23	32	27	53	29
J0247	Methamphetamine	17	46	38	27	35
K0488	Methamphetamine	10	14	37	31	32
M0457	Methamphetamine	16	24	25	70	27