The laws governing cannabis are evolving worldwide and associated with changing
patterns of use. The main psychoactive drug in cannabis is Δ 9-tetrahydrocannabinol (THC) …

Cannabis remains the most commonly used and trafficked illicit drug in the world. Its use is
largely concentrated among young people (15-to 34-year-olds). There is a variety of …

Despite increasing evidence that addiction is a treatable disease of the brain, most
individuals do not receive treatment. Involvement in the criminal justice system often results …

Ayahuasca is an Amazonian psychoactive plant beverage containing the serotonergic 5-
HT2A agonist N, N-dimethyltryptamine (DMT) and monoamine oxidase-inhibiting alkaloids …

The past few decades have seen a marked change in the composition of commonly smoked
cannabis. These changes primarily involve an increase of the psychoactive compound∆ 9 …

Although affective and substance use disorders frequently co-occur, the role of affective
dysregulation in addiction is often overlooked. This paper reviews the role of affective …

Memory problems are frequently associated with cannabis use, in both the short-and long-
term. To date, reviews on the long-term cognitive sequelae of cannabis use have examined …

Rationale Long-term heavy cannabis use can result in memory impairment. Adolescent
users may be especially vulnerable to the adverse neurocognitive effects of cannabis …

Stimulants, including cocaine and amphetamines, are among the most widely used and
abused illegal substances in the United States. Coca chewing has a long history of …

Findings on neurocognitive effects of sustained cannabis use are heterogeneous. Previous
work has rarely taken time of abstinence into account. In this review, we focus on …