Adult 1 Amphetamine 1 Bayesian data analysis 1 Cannabis 1 Computational modeling 1 Drug Users 1 Gambling 1 Heroin 1 Humans 1 Iowa Gambling Task 1 Learning 1 Models, Psychological 1 Neuropsychological Tests 1 Reinforcement (Psychology) 1 Reinforcement learning 1 Substance use 1 adult 1 drug use 1 gambling 1 human 1 learning 1 neuropsychological test 1 physiology 1 psychological model 1 psychology reinforcement 1