1. Some Basic Notions and their Ontogenesis 2. Paradigms and Research Tools 3. Biological Universals 4. Cellular Mnemonic Devices Detected in Relatively Simple Nervous Systems: the Case of Aplysia 5. Cellular Mnemonic Devices Detected in Relatively Simple Nervous Systems: The Case of...

1. Some Basic Notions and their Ontogenesis 2. Paradigms and Research Tools 3. Biological Universals 4. Cellular Mnemonic Devices Detected in Relatively Simple Nervous Systems: the Case of Aplysia 5. Cellular Mnemonic Devices Detected in Relatively Simple Nervous Systems: The Case of Hermissenda 6. A Cellular Mnemonic Device in the Mammalian Brain: Long-Term Potentiation 7. A Different Approach: Neurogenetics 8. On the Life Span of Molecules and Memories 9. On the Complexity of International Representations 10. In Search of the Topography of Engrams 11. Fragments of Engrams and of Memory Systems in the Vertebrate Brain 12. The Establishment of Innately Predisposed Representations in Sensitive Periods: Imprinting 13. The Establishment of Innately Predisposed Representations in Sensitive Periods: Bird Song 14. The Generation of Complex Internal Representations by Sensory Impressions and Their Use: Lessons from Monkeys and Vision 15. The Generation of Complex Internal Representations by Sensory Impressions and Their Use: Amnesias, Further Clues to Our Own Memories 16. Epilogue