Dopaminergic Modulation of Cognition and Psychomotor Function

Exclusion Criteria

• •Body mass index between 18.5 and 30
• •Willingness to sign an informed consent.
• •history of cardiac, hepatic, renal, pulmonary, neurological, gastrointestinal, haematological or psychiatric illness.
• •history of depression, bipolar disorder, anxiety disorder, panic disorder, psychosis, or attention deficit hyperactivity disorder will be excluded from participation.
• •first-degree relative with a psychiatric disorder or a history with a psychiatric disorder
• •excessive drinking (\>20 glasses of alcohol containing beverages a week
• •pregnancy or lactation
• •use of medication other than oral contraceptives
• •use of recreational drugs from 2 weeks before until the end of the experiment
• •any condition in which gastrointestinal motility might carry any risk
• •any sensory or motor deficits which could reasonably be expected to affect test performance