Table 5.
Exclusion criteria for the study.
| Exclusion Criteria |
|---|
| Current or past psychiatric disorder (e.g., depression, bipolar disorder) |
| First-degree relative with a diagnosis of schizophrenia-spectrum or other psychotic disorder, or bipolar disorder |
| Body mass index not between 18 and 30 |
| History of unexplained hallucinations or impulse control problems (e.g., pathological gambling) |
| Severe medical condition not stabilized at the time of the experiment (e.g., cardiovascular disease, epilepsy, asthma) |
| Severe heart or blood vessel disease |
| Postural hypotension |
| Any history of seizures |
| Lactose intolerance |
| Any current or past physical illness that has the potential to significantly affect mental functioning (e.g., epilepsy, hypothyroidism, Parkinson’s disease, multiple sclerosis) |
| Pregnant or lactating woman |
| Sexually active woman who does not use any medically accepted method of contraception |
| Current or previous intake (last three months) of any medication that has a significant potential to affect mental functioning (e.g., benzodiazepines, antidepressants, neuroleptics) |
| Any intake of recreational drugs in the last 3 months (e.g., marijuana, ecstasy) |
| Regular alcohol consumption of more than 14 units a week or excessive alcohol consumption up to three days before the experiment |
| Regular smoker (> 5 cigarettes per day) |
| Excessive caffeine user (> 6 caffeinated drinks per day) |
| History of recurrent rashes or history of allergic reactions to relevant substances (e.g., pramipexole) |
| Previous participation in a study using the same or similar tasks |
| History of recurrent rashes or history of allergic reactions to relevant substances (e.g., pramipexole) |
| Previous participation in a study using the same or similar tasks |
| Any contraindication to magnetic resonance imaging (e.g., metallic implant, severe claustrophobia) |
| Current participation in another study |
| In the researcher’s opinion, participation in the study could be harmful or severely distressing to the participant (e.g., intolerance of side effects), or the participant is not able to follow instructions or complete study tasks |