Status:
COMPLETED
Cognitive Hyper-performance - Effects of Stimulating Substances in Chess-players
Lead Sponsor:
K. Lieb
Conditions:
Cognitively Healthy Subjects Influenced by Psychoactive Drugs
Eligibility:
MALE
18-60 years
Phase:
PHASE1
Brief Summary
Effects of caffeine, methylphenidate, modafinil and placebo on cognitive performance of chess players in chess games and neuropsychiatric standardized tests. We hypothesize that substances will change...
Eligibility Criteria
Inclusion
- male
- 18-60 years old
- existence of ELO-number
Exclusion
- physical diseases (e.g. diabetes mellitus, etc.) with necessity of using prescription drugs
- psychiatric diseases (e.g. psychosis, bipolar disorders, etc.) with necessity of using prescription drugs
- addiction of psychoactive substances
- smoker or quitter (\< 5 years)
- use of more than 5 cups of coffee per day
- irregular day-night-rhythm (e.g. shift workers)
Key Trial Info
Start Date :
May 1 2011
Trial Type :
INTERVENTIONAL
Allocation :
ACTUAL
End Date :
April 1 2013
Estimated Enrollment :
40 Patients enrolled
Trial Details
Trial ID
NCT01834547
Start Date
May 1 2011
End Date
April 1 2013
Last Update
April 18 2013
Active Locations (1)
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1
Department of Psychiatry and Psychotherapy
Mainz, Germany, 55131