Editorial Preface
Efficacy of Porcine Secretin in Children with Autism and Pervasive Developmental Disorder
Double-Blind Placebo-Controlled Trial of Secretin: Effects on Aberrant Behavior in Children with Autism
Perception of Human and Nonhuman Facial Age by Developmentally Disabled Children
A Factor Analytic Study of the Autism Behavior Checklist
Reading the Mind in the Voice: A Study with Normal Adults and Adults with Asperger Syndrome and High Functioning Autism
Changes in Social Impairment for People with Intellectual Disabilities: A Follow-up of the Camberwell Cohort
The Changing Prevalence of Autism in California
Descriptive Epidemiology of Autism in a California Population: Who Is at Risk?
Brief Report: Increasing Communication Skills for an Elementary-Aged Student with Autism Using the Picture Exchange Communication System
Brief Report: Postural Reactivity to Fast Visual Motion Differentiates Autistic from Children with Asperger Syndrome
Letter to the Editor
In Memory of Donald Cohen
Ask the Editor
Announcement