Welcome to Psych-Effects

  • Participate in an interesting online study and contribute to psychedelic research.
  • It will take you 20-30 minutes. 
  • We want to thank you very much for your participation!
  • The study site is best viewed with a laptop/desktop/tablet.

As scientific research on clinical use of psychedelics emerges, it is important to better understand neurocognitive effects of psychedelics

The online study is conducted by an international team of researchers in the fields of neuroscience, psychology and psychiatry located at

– Medical University of Vienna, Austria
– The National Institute of Mental Health (NIMH) USA
– University of Zurich, Switzerland

Online Study

Study Team

Christoph Kraus, M.D. Ph.D.
Department of Psychiatry and Psychotherapy (Division of General Psychiatry), Medical University of Vienna
Kathrin Preller, PD Dr.
Department of Psychiatry, Psychotherapy and Psychosomatics, University of Zurich