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 cognitive performance in chess players leading to changed results in chess games and neuropsychiatric tests.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
HEALTH_SERVICES_RESEARCH
Masking
TRIPLE
Enrollment
40
Department of Psychiatry and Psychotherapy
Mainz, Germany
Chess games (win/ lose/ tie)
Time frame: two years
time period for decision of chess games
Time frame: results of ches games
Cognitive performance measured with standardized neuropsychiatric tests (Tower of Hanoi, Trail-Making test, Stroop-Test, Psycho-Motor-Vigilance test, Wisconsin-Card-Sorting-Test, Balloon Analog Risk Task)
Time frame: outcome of tests
measuring of risk taking behaviour, motivation, mood using standardized questionnaires
Time frame: outcome of tests
adverse events
Time frame: type of adverse events
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placebo