Effects of Modafinil, Caffeine and Methylphenidate in Healthy Volunteers
Status:
Completed
Trial end date:
2014-03-01
Target enrollment:
Participant gender:
Summary
In this study the investigators compare three stimulants to each other. The effects of these
agents on cognitive performance (eg, attention and memory) and on the brain are being
measured. The hypothesis is that stimulants will have a positive effect on cognitive
performance.
Each study participant will receive once a placebo and once methylphenidate or modafinil or
caffeine. Methylphenidate (also known as Ritalin ®) is a drug that is used in the treatment
of attention deficit / hyperactivity disorder (ADHD) in children, adolescents and adults.
Modafinil ( Vigil ®) is a drug used in the treatment of narcolepsy (sleeping sickness). In
the study. These substances are given in the study only once and in the dosages in which is
also used for the treatment of the above diseases. In the case of caffeine , the dosage
corresponds to two cups of coffee.