The study, published online today in the journal Pediatrics, examined an intervention called the Early Start Denver Model, which combines applied behavioral analysis (ABA) teaching methods with developmental 'relationship-based' approaches.
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Early intervention for toddlers with autism highly effective, study finds - 1 views
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The five-year study took place at the University of Washington (UW) in Seattle and was led by Dawson, then a professor of psychology and director of the university's Autism Center, in partnership with Rogers. It involved therapy for 48 diverse, 18- to 30-month-old children with autism and no other health problems.
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At the conclusion of the study, the IQs of the children in the intervention group had improved by an average of approximately 18 points, compared to a little more than four points in the comparison group. The intervention group also had a nearly 18-point improvement in receptive language (listening and understanding) compared to approximately 10 points in the comparison group. Seven of the children in the intervention group had enough improvement in overall skills to warrant a change in diagnosis from autism to the milder condition known as 'pervasive developmental disorder not otherwise specified,' or PDD-NOS. Only one child in the community-based intervention group had an improved diagnosis.
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In this study, the intervention was provided in a toddler's natural environment (their home) and delivered by trained therapists and parents who received instruction and training as part of the model.
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Parents are taught strategies for capturing their children's attention and promoting communication. By using these strategies throughout the day, the children were offered many opportunities to learn to interact with others.
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shared by Tero Toivanen on 01 Jul 09
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Research Unearths New Treatments for Autism - 2 views
www.apa.org/...pi4.html
autism research TEACCH Young Autism Project Lovaas DIR ABA PRT Pivotal Response Training social engagement system middle ear music intensity
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The Utah researchers found that children receiving a combination of the two treatments (Lovaas-type training at school and TEACCH methods at home) showed three to four times greater progress on all outcome tests than did children who received only the school-based treatment. That study was reported in the Journal of Autism and Developmental Disorders (Vol. 28, No. 1, p. 2532).
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Researchers in Washington, D.C., are comparing a discrete trial training approach with a "developmental, individual-difference, relationship based" (DIR) approach, says child psychiatrist Stanley Greenspan, MD, professor of psychiatry at George Washington University Medical School.
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Psychologist Robert Koegel, PhD, at the University of California, Santa Barbara, and his colleagues are attempting to tailor a standard treatment to the specific needs of an autistic child and family. The standard treatment is called pivotal response training
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An initial retrospective study is comparing two groups of 20 children initially diagnosed with autism who were functioning well after two or more years of treatment, either with a discrete trial training approach or the DIR approach. The study aims to determine if treatment differences lead to subtle differences in outcome, for example, in terms of flexibility, emotional range, creativity and richness of the child's inner life. Investigators are planning to follow this research with a prospective, randomized, more rigorous study of the two approaches.
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"In our previous studies we found out that it looks like you can't just deliver a standard treatment to autistic kids, that there's so much variability among the children that what works for one child doesn't work for another child," he says. "Our hypothesis is that...unless you individualize treatment, you're not going to get the best effect."
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Researchers at the University of Maryland are testing an intervention to trigger children's "social engagement system," which includes behaviors such as listening, looking, facial expressions and vocalizations that support social interaction, says psychologist Stephen Porges, PhD. The treatment is designed to improve autistic children's ability to interact with others, thereby making them more receptive to traditional therapies.
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The intervention is based on the theory that tensing the middle ear muscles enables people to pick out the human voice from lower frequency sounds in the environment, Porges says. Treatment involves exercising middle ear muscles by playing music that has been altered to include only frequencies associated with the human voice, which improves one's ability to listen to human voices. This, in turn, stimulates the entire social engagement system, Porges says. About 80 percent of 50 children with autism or other behavioral problems receiving this treatment via five 45-minute sessions in a double blind, randomized controlled study showed marked improvements in listening, language and other communication skills.
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In a report last year in the Journal of Autism and Developmental Disorders (Vol. 28, No. 1, p. 15-23) evaluating an intensive home-based discrete trial training intervention, Stephen Sheinkopf, PhD, of the University of Miami and Bryna Siegel, PhD, of the University of California, San Francisco, noted that children receiving an average of only 21 hours per week of treatment showed gains in IQ comparable to those achieved by children receiving 32 hours per week. The intensity question remains an issue of importance for the autism community. "If we need 40 hours a week, fine," says psychologist Geraldine Dawson, PhD, of the University of Washington. "But if you only need 25, you have to realize that 40 hours is a tremendous burden not only financially, but on families and on the child."
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