• Publications
  • Influence

Claim Your Author Page
Ensure your research is discoverable on Semantic Scholar. Claiming your author page allows you to personalize the information displayed and manage publications (all current information on this profile has been aggregated automatically from publisher and metadata sources).
  • Johannes G Ramaekers, Gerhold Kauert, Eef L Theunissen, Stefan W Toennes, Manfred R. Moeller
  • Psychology, Medicine
  • Journal of psychopharmacology
  • 2009 (First Publication: 1 May 2009)
  • Abstract Performance impairment during Δ9-tetrahydrocannabinol (THC) intoxication has been well described in occasional cannabis users. It is less clear whether tolerance develops to the impairingContinue Reading
  • Johannes G Ramaekers, Gerhold Kauert, Peter van Ruitenbeek, Eef L Theunissen, Erhard Schneider, Manfred R. Moeller
  • Psychology, Medicine
  • Neuropsychopharmacology
  • 2006 (First Publication: 1 October 2006)
  • Human performance studies have usually relied on low-potency marijuana (4% THC) for determining THC-induced impairment. The present study was designed to assess the effects of high-potency marijuanaContinue Reading
  • Cécile Henquet, Araceli Rosa, +5 authors Jim van Os
  • Psychology, Medicine
  • Neuropsychopharmacology
  • 2006 (First Publication: 1 December 2006)
  • Observational studies have suggested that psychometric psychosis liability and a functional polymorphism in the catechol-O-methyltransferase (COMT Val158Met) gene moderate the psychosis-inducingContinue Reading
  • Johannes G Ramaekers, Nienke Muntjewerff, James O'hanlon
  • Medicine
  • British journal of clinical pharmacology
  • 1995 (First Publication: 1 April 1995)
  • 1. The acute and subchronic effects of dothiepin 75-150 mg and fluoxetine 20 mg on critical fusion frequency (CFF), sustained attention and actual driving performance were compared with those ofContinue Reading