Table 1.

Subjects’ ages (years), weights (kg), lifetime cocaine intakes (mg/kg) and the individual delay times in the DMS task (seconds).

Subject	Age	Weight	Intake	Short	Medium	Long
Cocaine-naïve
C-7905	5	4.0	0.0	3	25	45
C-7902	5	2.8	0.0	3	25	50
C-7664	6	2.9	0.0	2	45	70
C-7591	6	3.1	0.0	2	15	40
C-7558	5	3.0	0.0	0	10	30
C-7870	11	2.8	0.0	1	15	35
C-7964	5	2.6	0.0	3	15	25
C-8202	6	2.4	0.0	did not become stable
C-7460	10	4.0	0.0	0	10	30
Cocaine-experienced
C-7438	7	2.6	207.8	1	15	45
C-7458	7	3.4	170.9	0	10	30
C-7437	7	3.5	1979.8	0	30	60
C-7431	7	3.2	290.0	0	10	30
C-7457	10	2.7	986.0	1	10	30
C-7434	10	2.8	962.0	did not become stable
C-7441	10	3.3	680.0	not tested