Improved Language Acquisition With Levodopa

Completed

Phase 4 Results N/A

Eligibility Criteria

Inclusion Criteria

- Healthy subjects
- 20-35 years old
- Right handedness

Exclusion Criteria

- Neurological/psychiatric/metabolic/cardiac disorders
- Asthma
- Known allergic reactions to one of the experimental drugs
- Other drugs affecting the central nervous system
- Leisure drug ingestion during the past 4 weeks (urine test)
- Smoking cessation during the past 2 weeks
- > 6 cups of coffee or energy drinks per day
- > 10 cigarettes per day
- > 50 grams of alcohol per day