Preface. Acknowledgments. Introduction. Infancy Research: History and Methods: Darwin Muir and Alan Slater. Part I: Theoretical IssuesIntroduction. Why Do Infants Do What They Do? Introduction. 1. Shifting the Focus From What to Why: C. Rovee-Collier. The Origins of Knowledge: Nature versus Nurture. Introduction. 2. Nativism, Empiricism, and the Origins of Knowledge: E.S. Spelke. Connectionist Modeling. Introduction. 3. Connectionist Modeling and Infant Development: D.Mareschal. Part II: Sensation and Perception Introduction. Fetal Sensitivity to Touch. Introduction. 4. Maturation of Human Fetal Responses to Vibroacoustic Stimulation: B.S. Kisilevsky, D.W. Muir, and J.A. Low. Early Visual perception. Introduction. 5. Visual perception in the Young Infant: Early Organization and Rapid Learning: A. Slater. Intermodal Perception. Introduction. 6. Increasing Specificity in the Development of Intermodal Perception: L. Bahrick. Social Perception. Introduction. 7. Look at Me: Five-Month-Old Infants' Sensitivity to Very Small Deviations in Eye-Gaze During Social Interactions: L.A. Symons, S.M. Hains, and D.W. Muir. Speech Perception. Introduction. 8. Becoming a Native Listener: J.F. Werker. Part III: Cognitive DevelopmentIntroduction. Newborn Imitation. Introduction. 9a. Imitation of Facial and Manual Gestures by Human Neonates: A.N. Meltzoff, and M.K Moore. 9b. Resolving the Debate about Early Imitation: A.N. Meltzoff, and M.K. Moore. Infant Counting. Introduction. 10. Addition and Subtraction by Human Infants: K. Wynn. Learning About the Physical World. Introduction. 11. How Do Infants learn About the Physical World? R. Baillargeon. The A-not-B Error. Introduction. 12. Why Do Infants Make A-not-B Errors in a Search Task, Yet Show Memory for the Location of Hidden Objects in a Nonsearch Task? A. Ahmed, and T. Ruffman. Predicting Later Intelligence. Introduction. 13. Why Does Infant Attention Predict Adolescent Intelligence? M. Sigman, S.E. Cohen, and L. Beckwith. Part IV: Social Development and Communication:Introduction. Infant-Directed Speech. Introduction. 14. Infant Responses to Prototypical melodic Contours in Parental Speech: M. Papousek, M.H. Bornstein, C. Nuzzo, H. Papousek, and D. Symmes. 15. Early Word Comprehension in 6-Moth-Olds: R. Tincoff, and P.W. Jusczyk. Social Referencing. Introduction. 16. Maternal Emotional Signaling: Its Effect on the Visual Cliff Behavior of 1-Year-Olds: J.F. Sorce, R.N. Emde, J. Campos, and M.D. Klinnert. Infant Understanding of Others' Intentions and Theory of Mind. Introduction. 17. Fourteen-Through 18-Month-Old Infants. Differentially Imitate Intentional and Accidental Actions: M. Carpenter, N. Akhtar, and M. Tomasello. Social Attachments. Introduction. 18. Stability and Transmission of Attachment across Three Generations: D. Benoit, and K. Parker. Infants with Autism. Introduction. 19. An Experimental Investigation of Social-Cognitive Abilities in Infants with Autism: Clinical Implications: T. Charman, J. Swettenham, S. Baron-Cohen, A. Cox, G. Baird, and A. Drew. Index.