Eef L. Theunissen

High-Potency Marijuana Impairs Executive Function and Inhibitory Motor Control

Johannes G. Ramaekers, G. Kauert, Peter van Ruitenbeek et al. · Neuropsychopharmacology · 2006 · 393 citations · Full text

Cannabis Use, Health Sciences, Addiction +6

Cognition and motor control as a function of Δ9-THC concentration in serum and oral fluid: Limits of impairment

Johannes G. Ramaekers, Manfred R. Moeller, Peter van Ruitenbeek et al. · Drug and Alcohol Dependence · 2006 · 288 citations

Clinical Disorders, Cognitive Performance, Neurophysiology +8

Ayahuasca enhances creative divergent thinking while decreasing conventional convergent thinking

Kim P. C. Kuypers, Jordi Riba, Mario de la Fuente Revenga et al. · Psychopharmacology · 2016 · 198 citations · Full text

Effect of Cannabidiol and Δ⁹-Tetrahydrocannabinol on Driving Performance

Thomas R. Arkell, Frederick Vinckenbosch, Richard C. Kevin et al. · JAMA · 2020 · 166 citations · Full text

Tolerance and cross-tolerance to neurocognitive effects of THC and alcohol in heavy cannabis users

Johannes G. Ramaekers, Eef L. Theunissen, Marjolein de Brouwer et al. · Psychopharmacology · 2010 · 163 citations · Full text