Research Article

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

Table 2

Classes of illicit drugs consumed in the stimulant and cannabis groups.

Stimulant groupCannabis group

Stimulants100%0%
 Ecstasy100%0%
 Methamphetamine81%0%
 Cocaine57%0%
 Pharmaceutical14%0%
Cannabis100%100%
Hallucinogens86%31%
Inhalants57%6%
Sedatives24%0%
Opioids29%0%

Data are percentage of subjects that have consumed that class of illicit drug in their lifetime. The term “hallucinogen” describes LSD (lysergic acid diethylamide), LSA (d-lysergic acid amide), “magic” mushrooms, DOI (2,5-dimethoxy-4-iodoamphetamine), Salvia divinorum, ketamine, and/or mescaline. The term “opioid” describes heroin, methadone, opium, and recreational use of codeine, oxycodone, and/or buprenorphine. The term “inhalant” describes amyl nitrate and/or nitrous oxide. The term “sedative” describes GHB (or “Fantasy”) and/or recreational use of benzodiazepine or antidepressants.