1. Chemical transmission of nerve impulses 2. The suppression of psychotic behaviour: Discovery of the clinical use of neuroleptics 3. The suppression of psychotic behaviour: The discovery of the butyrophenone-type neuroleptics 4. The suppression of psychotic behaviour: Antipsychotic agents: elucidation of their mode of action 5. Antidepressants: Clinical discoveries with antidepressant drugs 6. Antidepressants: Monoamine oxdase and its inhibitors in relation to antidepressive activity 7. Levodopa and dopamine agonists in the treatment of Parkinson's disease 8. Alleviation of anxiety 9. The development of antiepileptic drugs