Acknowledgments; Preface; 1. Introduction; 2. Discovering Synaptic Pruning; 3. Else, Peter's Mother; 4. Richard, Peter's Father, and Peter's Uncle Fritz; 5. Greiz: Kriegskinder (Children of War); 6. In Braubach, after the War; 7. University of Buffalo and Philosophy; 8. Harvard Medical School; 9. Understanding Sleep and Consciousness: Research at NIH; 10. Entering the Cognitive Revolution: Neuroscience and Cognitive Psychology; 11. Physician First, Scientist Second?; 12. Comparative Brain Regions and Synapse Formation; 13. Stimulating Progress on Developmental Brain Disorders; 14. Neurodevelopmental Disorders and Schizophrenia: A Role for Synaptic Pruning?; 15. Early Childhood Education; 16. Peter and Janellen's Collaboration; 17. Microglia and the Mechanisms of Synaptic Pruning; 18. Looking Forward: Being a Physician and a Scientist; 19. Parkinson's Disease and Berlin; 20. Auf Deutsch; Reflections at the End; Glossary; Index.