Protocol Number: 91-M-0230
Monoaminergic drugs are substances that affect the nervous system; these drugs can raise, hamper, or have no effect on brain function when given to healthy individuals. Different responses to a drug may be the result of genetic variations. This study will examine the effects of the monoaminergic drug dextroamphetamine on thought and sensorimotor processes while participants perform a variety of tasks. Participants in this study will undergo a medical history, physical examination, blood tests, and an electrocardiogram (EKG). Women of reproductive potential will undergo a pregnancy test. Participants will be given either dextroamphetamine or placebo (an inactive solution) on two occasions separated by at least 3 to 7 days. Participants will then perform neuropsychological tests that will measure attention, problem solving, memory, and ability to complete simple motor tasks.
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National Institutes of Health Clinical Center
Bethesda, Maryland 20892. Last update: 05/05/2009
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