History of Illicit Stimulant Use Is Not Associated with Long-Lasting Changes in Learning of Fine Motor Skills in Humans

Table 3

Summary of lifetime use of stimulants and cannabis in the stimulant group.

Subject	Total stimulants	Amphetamines	Ecstasy	Cannabis
1	2,241	2,072	169	28
2	833	832	1	13
3	828	402	426	3,675
4	367	211	156	4,380
5	332	228	104	1,251
6	213	3	210	120
7	209	208	1	6,570
8	199	93	106	23
9	156	3	153	1,529
10	57	5	52	4,380
11	38	26	12	5,616
12	36	10	26	474
13	31	3	28	876
14	27	26	1	270
15	22	2	20	1,456
16	19	8	11	6
17	19	1	18	15
18	18	—	18	153
19	17	4	13	2,763
20	16	10	6	1,092
21	12	3	9	72
Mean	271 ± 513	207 ± 483	73 ± 104	1,655 ± 2,061

Single-subject and mean data are presented (number of times used). The term “amphetamine” describes amphetamine and amphetamine-like drugs such as methamphetamine, cocaine, dexamphetamine, Ritalin, and pemoline (one subject). The term “ecstasy” describes ecstasy, MDA (3,4-methylenedioxyamphetamine, one subject), and MCAT (mephedrone, one subject).