Part One: Introduction and Overview ; 1. The More You Know the Less You Know, But That's OK: Developments in the Developmental Approach to Intellectual Disability ; Jacob A. Burack, Natalie Russo, Heidi Flores, Grace Iarocci, and Edward Zigler ; Part Two: Genes and Behavior ; 2. Behavioural Genetics, Genomics, Intelligence, and Mental Retardation ; Grace Iarocci and Stephen A. Petrill ; 3. The Contribution of Developmental Models towards Understanding Gene-to-Behavior Mapping: The Case of Williams Syndrome ; Mayada Elsabbagh & Annette Karmiloff-Smith ; 4. Linking Genes to Cognition: The Case of Fragile X Syndrome ; Kim M. Cornish, Armando Bertone, Cary S. Kogan, and Gaia Scerif ; Part Three: Cognitive Development ; 5. The Organization and Development of Spatial Representation: Insights from Williams Syndrome ; Barbara Landau ; 6. Understanding the Development of Attention in Persons with Intellectual Disability: Challenging the Myths ; Grace Iarocci, Mafalda Porporino, James T. Enns, and Jacob A. Burack ; 7. Memory and Learning in Intellectual Disabilities ; Stefano Vicari ; 8. Short-Term Memory and Working Memory in Mental Retardation ; Christopher Jarrold and Jon Brock ; 9. Executive Function across Syndromes Associated with Intellectual Disabilities: A Developmental Perspective ; Natalie Russo, Tamara Dawkins, Mariette Huizinga, and Jacob A. Burack ; 10. Musical Ability and Developmental Disorders ; Anjali K. Bhatara, Eve-Marie Quintin, and Daniel J. Levitin ; 11. Brain-Based Methods in the Study of Developmental Disabilities: Examples from ERP and MRI Research ; Alexandra P.F. Key and Tricia A. Thornton-Well ; Part Four: Language Development ; 12. Language Development in Childhood, Adolescence, and Young Adulthood in Persons with Down Syndrome ; Robin S. Chapman and Elizabeth Kay-Raining Bird ; 13. Literacy Development in Childhood, Adolescence, and Young Adulthood in Persons with Down Syndrome ; Elizabeth Kay-Raining Bird and Robin S. Chapman ; 14. Language Development in Fragile X Syndrome: Syndrome-Specific Features, Within-Syndrome Variation, and Contributing Factors ; Leonard Abbeduto, Andrea McDuffie, Nancy Brady, and Sara T. Kover ; 15. Language Development in Williams Syndrome ; Carolyn B. Mervis ; Part Five: Social-Emotional Development ; 16. Emotional Development in Children with Developmental Disabilities ; Connie Kasari, Laudan Jahromi, and Amanda Gulsrud ; 17. Socio-emotional and Brain Development in Children with Genetic Syndromes Associated with Developmental Delay ; Alison Niccols, Karen Thomas, and Louis A. Schmidt ; 18. The Assessment and Presentation of Autism Spectrum Disorder and Associated Characteristics in Individuals with Severe Intellectual Disability and Genetic Syndromes ; Joanna Moss, Patricia Howlin, and Chris Oliver ; Part Six: Family and Context ; 19. Family Well-being and Children with Intellectual Disability ; Laraine Masters Glidden ; 20. Dyadic Interaction between Mothers and Children with Down Syndrome or Williams Syndrome: Empirical Evidence and Emerging Agendas ; Penny Hauser-Cram, Angela N. Howell-Moneta, and Jessica Mercer Young ; 21. Parenting and Mental Retardation: An attachment perspective ; Rinat Feniger-Schaal, David Oppenheim, Nina Koren-Karie, and Nurit Yirmiya ; 22. Children with Down Syndrome: Parents' Perspectives ; Michal Al-Yagon and Malka Margalit ; 23. Child Eliciting Effects in Families of Children with Intellectual Disability: ; Proximal and Distal Perspectives ; Deborah J. Fidler ; 24. Life Course Perspectives in Intellectual Disability Research: The Case of Family Caregiving ; Anna J. Esbensen, Marsha Mailick Seltzer, and Marty Wyngaarden Krauss ; Part Seven: Conclusions and Future Directions ; 25. On Knowing More: Future Issues for Developmental Approaches to Intellectual Disabilities ; Jacob A. Burack, Robert M. Hodapp, Grace Iarocci, and Edward Zigler ; Index