Communicative Acts of Children With Autism Spectrum Disorders in the Second Year of Life

• Published in: Journal of speech, language, and hearing research language, and hearing research, 2009-10, Vol.52 (5), p.1139-1156
• Main Authors: Shumway, Stacy, Wetherby, Amy M
• Format: Article
• Language: English
• Subjects: Analysis; Analysis of Variance; Attention; Autism; Autism Spectrum Disorders; Autistic children; Autistic Disorder - epidemiology; Autistic Disorder - psychology; Behavior; Child, Preschool; Children & youth; Cognitive ability; Communication; Communication (Thought Transfer); Communication and Symbolic Behavior Scales; Developmental Delays; Eye Movements; Female; Gestures; Government employees; Humans; Infant; Interpersonal communication in children; Language Development; Male; Nonverbal Communication; Observer Variation; Pervasive Developmental Disorders; Predictive Value of Tests; Preschool children; Preschool education; Profiles; Social Behavior; Social interaction; Studies; Toddlers; Verbal Behavior; Young Children
• ISSN: 1092-4388; 1558-9102
• DOI: 10.1044/1092-4388(2009/07-0280)

Amy M. Wetherby Florida State University, Tallahassee Contact author: Stacy Shumway, Pediatric & Developmental Neuroscience Branch, National Institute of Mental Health, 10 Center Drive, MSC 1255, Building 10, Room 4N208, Bethesda, MD 20892-1255. E-mail: shumways{at}mail.nih.gov . Purpose: To examine the communicative profiles of children with autism spectrum disorders (ASD) in the second year of life. Method: Communicative acts were examined in 125 children 18 to 24 months of age: 50 later diagnosed with ASD; 25 with developmental delays (DD); and 50 with typical development (TD). Precise measures of rate, functions, and means of communication were obtained through systematic observation of videotaped behavior samples from the Communication and Symbolic Behavior Scales Developmental Profile (A. Wetherby & B. Prizant, 2002). Results: Children with ASD communicated at a significantly lower rate than children with DD and TD. The ASD group used a significantly lower proportion of acts for joint attention and a significantly lower proportion of deictic gestures with a reliance on more primitive gestures compared with the DD and TD groups. Children with ASD who did communicate for joint attention were as likely as other children to coordinate vocalizations, eye gaze, and gestures. Rate of communicative acts and joint attention were the strongest predictors of verbal outcome at age 3. Conclusion: By 18 to 24 months of age, children later diagnosed with ASD showed a unique profile of communication, with core deficits in communication rate, joint attention, and communicative gestures. KEY WORDS: autism, ASD, social communication, joint attention, early identification CiteULike     Connotea     Del.icio.us     Digg     Facebook     Reddit     Technorati     Twitter     What's this?