Nadra Aouka, PhD, Centre National de Recherche Scientifique (CNRS), Université Pierre et Marie Curie, Paris, France

Simon Baron-Cohen, PhD, Departments of Experimental Psychology and Psychiatry, Cambridge University, Cambridge, United Kingdom

Tony Charman, PhD, Behavioural and Brain Sciences Unit, Institute of Child Health, University College London, London, United Kingdom

Patricia Howlin, PhD, Department of Psychology, St. George's, University of London, London, United Kingdom

Jennifer J. Hurley, PhD, Department of Psychology and Human Development, Vanderbilt University, Nashville, Tennessee

Catherine Lord, PhD, Autism and Communication Disorders Center, University of Michigan, Ann Arbor, Michigan

Andrea S. McDuffie, PhD, Department of Psychology and Human Development, Vanderbilt University, Nashville, Tennessee

Peter Mundy, PhD, Department of Psychology and The Marino Autism Research Institute, University of Miami, Coral Gables, Florida

Jacqueline Nadel, PhD, Centre National de Recherche Scientifique (CNRS), Université Pierre et Marie Curie, Paris, France

Jennifer Richler, MA, Autism and Communication Disorders Center, University of Michigan, Ann Arbor, Michigan

Sally J. Rogers, PhD, The M.I.N.D. Institute, Department of Psychiatry and Behavioral Sciences, University of California, Davis, Medical Center, Sacramento, California

Adriana L. Schuler, PhD, Department of Special Education, San Francisco State University, San Francisco, California

Wendy Stone, PhD, Vanderbilt Kennedy Center and Department of Pediatrics, Vanderbilt University, Nashville, Tennessee

Danielle Thorp, PhD, Louis de la Parte Florida Mental Health Institute, University of South Florida, Tampa, Florida

Tedra A. Walden, PhD, Department of Psychology and Human Development, Vanderbilt University, Nashville, Tennessee

Amy M. Wetherby, PhD, Department of Communication Disorders, Florida State University, Tallahassee, Florida

Pamela J. Wolfberg, PhD, Department of Special Education, San Francisco State University, San Francisco, California

Paul J. Yoder, PhD, Department of Special Education, Vanderbilt University, Nashville, Tennessee

Lonnie Zwaigenbaum, MD, Department of Pediatrics, McMaster University, Hamilton, Ontario, Canada