Currently, the assessment of the neurobehavioral consequences of repeated cannabis use is restricted to studies in which brain function of chronic cannabis users is compared to that of non-cannabis using controls. The assumption of such studies is that changes in brain function of chronic users are caused by repeated and prolonged exposure to acute cannabis… Continue reading Cannabis Use and Neuroadaptation: A Call for Δ 9 -Tetrahydrocannabinol Challenge Studies.
Kratom is a plant, native of Eastern countries, that is popular as a novel psychoactive substance (NPS). Its main compound is mitragynine (MG). The purpose of this study is to asses the physiological and cognitive effects of mitragynine in healthy subjects (phase 1 study). The study consists of 4 test days of ± 7.5 hours… Continue reading Healthy males and females who want to participate in a placebo-controlled study on physiological and cognitive effects of Kratom (mitragynine).
A recent study from our group in collaboration with the Lambert Initiative at Sydney University shows that THC-dominant cannabis can cause impairment of on-road driving and cognitive function for up to 4 hours after vaporization. Cannabis that contained CBD only did not affect driving and cognition. Cannabis that contained both THC and CBD produced impairment… Continue reading Effect of Cannabidiol (CBD) and Δ9-Tetrahydrocannabinol (THC) on Driving Performance
Maastricht University started a study in the influence cannabis on brain function and is recuiting volunteers to participate. The study consists of 2 test days of about 5 hrs each. During each test day you will receive either cannabis or placebo. Your brain activity will be monitored in an MRI scanner for about 1 hour.… Continue reading Volunteers wanted to participate in brain imaging after vaporizing cannabis
We are deeply saddened by the loss of pharmacologist dr. Jordi Riba, probably the most prominent psychedelic researcher in Catalunya and Spain, and a true pioneer in the biomedical study of ayahuasca. Jordi was a true explorer who conducted his scientific quest for discovery and information in the same way 15th-century discoverers explored territories on… Continue reading Remembering Jordi Riba – a pioneer in ayahuasca research