Saturday, October 31, 2015

Group Pivotal Response Treatment (PRT) for Parents of Children with Autism

Group Pivotal Response Treatment (PRT) for Parents

More children than ever before are being diagnosed with autism spectrum disorder (ASD). The dramatic increase in the prevalence of children with ASD has created an urgent need for effective and efficient service delivery models. Parents and caregivers everywhere are eager for credible, research-based information on the most effective treatments for ASD. Utilizing a group training format, researchers have found that parents can learn to successfully incorporate an established treatment for ASD into everyday interactions with their children. According to findings published in the Journal of Child Psychology and Psychiatry, parents learned to successfully apply an evidence-based therapy method called Pivotal Response Treatment (PRT), also referred to as Pivotal Response Training, and observed meaningful improvement in their children.

PRT is one of the best studied and validated behavioral treatments for autism. It is a naturalistic behavioral intervention derived from the principles of Applied Behavior Analysis (ABA). PRT builds on learner initiative and interests, and is particularly effective for developing communication, language, play, and social behaviors. PRT was developed to create a more efficient and effective intervention by enhancing four pivotal learning variables: motivation, responding to multiple cues, self-management, and self-initiations. According to theory, these skills are pivotal because they are the foundational skills upon which learners with ASD can make widespread and generalized improvements in many other areas.

The objective of the study was to evaluate a PRT parent training group (PRTG) for targeting language deficits in young children with ASD. For the study, researchers randomly assigned parents of 53 children with autism to participate in 12 weeks of classes on PRT or a psychoeducation group (PEG). All of the children were between the ages of 2 and 6 and had language delays. The PRTG taught parents behavioral techniques to facilitate language development. The PEG taught general information about ASD. All of the children were assessed at the outset of the study, at six weeks and at 12 weeks to determine their language abilities. Parents were also videotaped at six and 12 weeks to measure how well they were applying the treatment.

The results indicated that parents were able to learn PRT in a group format, as the majority of parents in the PRTG (84%) were using it correctly by the end of the study. Children also demonstrated improvement in adaptive communication skills. Children whose parents learned the technique reported greater gains in both the number of words used and how they used them as compared to children in the psychoeducation (control) group.

This study is considered the first randomized controlled test of group-delivered PRT and one of the largest experimental investigations of the PRT model to date. The findings suggest that specific instruction in PRT results in greater skill acquisition for both parents and children, especially in functional and adaptive communication skills. Even with the improvements, researchers said that parent-implemented approaches are intended to augment, not replace, autism therapies from professionals. Likewise, further research in PRT is warranted to replicate the observed results and address other core ASD symptoms. It should also be noted that research findings are not the only factor involved when selecting an intervention. Professional judgment and the values and preferences of parents, caregivers, and the individual are also important.

Hardan, A. Y., Gengoux, G. W., Berquist, K. L., Libove, R. A., Ardel, C. M., Phillips, J., Frazier, T. W. and Minjarez, M. B. (2014), A randomized controlled trial of Pivotal Response Treatment Group for parents of children with autism. Journal of Child Psychology and Psychiatry. doi: 10.1111/jcpp.12354

Tuesday, October 27, 2015

Sibling Study Reveals Early Signs of Autism


                                                                                                                                                                            Younger siblings of children with autism spectrum disorder (ASD) are at high risk for developing ASD as well as features of the broader autism phenotype. About 20% of younger siblings of children with Autism Spectrum Disorder (ASD) will develop the condition by age 3. A study by Yale School of Medicine researchers has found that 57% of these younger siblings who later develop the condition already showed warning signs like poor eye contact and repetitive behaviors at just a year and a half old. Published in the Journal of the American Academy of Child & Adolescent Psychiatry, this is the first large-scale, multi-site study aimed at identifying specific social-communicative behaviors that distinguish infants with ASD from their typically and atypically developing high-risk peers as early as 18 months of age. For the study, researchers looked at data on 719 infants who had older siblings on the spectrum. The children were assessed at 18 months and again at 36 months to identify social, communication and repetitive behaviors that could be predictive of autism.

Three distinct combinations of features at 18 months were predictive of ASD outcome: 1) poor eye contact combined with lack of communicative gestures and giving; 2) poor eye contact combined with a lack of imaginative play; and 3) lack of giving and presence of repetitive behaviors, but with intact eye contact. These 18-month behavioral profiles predicted ASD versus non-ASD status at 36 months with 82.7% accuracy in an initial test sample and 77.3% accuracy in a validation sample. Clinical features at age 3 among children with ASD varied as a function of their 18-month symptom profiles. Children with ASD who were misclassified at 18 months were higher functioning, and their autism symptoms increased between 18 and 36 months.

"While the majority of siblings of children with ASD will not develop the condition themselves, for those who do, one of the key priorities is finding more effective ways of identifying and treating them as early as possible," said lead author Katarzyna Chawarska, associate professor in the Yale Child Study Center and the Department of Pediatrics at Yale School of Medicine. "Our study reinforces the need for repeated diagnostic screening in the first three years of life to identify individual cases of ASD as soon as behavioral symptoms are apparent." Early detection, especially when toddlers have siblings with autism, is critical. Chawarska added, "Linking these developmental dynamics with underlying neurobiology may advance our understanding of causes of ASD and further efforts to personalize treatment for ASD by tailoring it to specific clinical profiles and their developmental dynamics."

Other authors of the study included: Suzanne Macari, Frederick Shic, Daniel J. Campbell, Jessica Brian, Rebecca Landa, Ted Hutman, Charles A. Nelson, Sally Ozonoff, Helen Tager-Flusberg, Gregory S. Young, Lonnie Zwaigenbaum, Ira L. Cohen, Tony Charman, Daniel S. Messinger, Ami Klin, Scott Johnson, and Susan Bryson.

“18-Month Predictors of Later Outcomes in Younger Siblings of Children With Autism Spectrum Disorder: A Baby Siblings Research Consortium Study.” Published online 06 October 2014. Journal of the American Academy of Child & Adolescent Psychiatry.

Citation: JACC doi: 10.1016/j.jaac.2014.09.015


Lee A. Wilkinson, PhD, NCSP is a licensed and nationally certified school psychologist, and certified cognitive-behavioral therapist. He is author of the award-winning books,  A Best Practice Guide to Assessment and Intervention for Autism and Asperger Syndrome in Schools and Overcoming Anxiety and Depression on the Autism Spectrum: A Self-Help Guide Using CBTHe is also editor of a text in the APA School Psychology Book Series, Autism Spectrum Disorder in Children and Adolescents: Evidence-Based Assessment and Intervention in Schools. His latest book is A Best Practice Guide to Assessment and Intervention for Autism Spectrum Disorder in Schools (2nd Edition).

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