Last week, investigators with the Autism Treatment Network published a long awaited study on the differences between the DSM IV and DSM5. Other studies had relied on information on old pieces of paper to judge whether or not someone who met criteria under DSM IV would be now diagnosed with DSM5 criteria. This study, on the other hand, used in person evaluations of over 400 individuals with autism. PI from the Missouri site and lead author of a new study, Dr. Micah Mazurek was gracious enough to provide a summary of the findings in the podcast. A quick preview: they showed differences in the diagnosis in the group previously known as PDD-NOS. Is this a new type of autism? Their symptoms were less severe and they had normal IQ ability – do they have a subtype of autism or a new form of ADHD? This study isn’t the first to suggest using different categories of symptoms of autism like DSM IV did, and indicates that the new criteria of the DSM 5 are more specific. In addition, a 2 minute summary of all the great presentations at the Autism Society of America is given. Totally insufficient to describe everything that went on, but it’s a start.
This week two important studies which examine early influences of language development are explored. First, we are lucky that Dr. Aaron Shield from Miami University joined to explain why studying children who are deaf and have autism, as well as parents of deaf children, are important for understanding language development. He explores how autism is different and the same in those who are and are not deaf. Second, study of very early speech, even before language emerges, may help guide speech and language therapists about how they should be dividing their time in therapy in toddlers, especially those with a high probability of developing ASD. Thank you to both Drs. Shield and Chenausky for sharing their findings with us!
Even though more than 20% of people with autism have little or no language, research into ways to help this group have really been lacking. Several efforts to not just understand the abilities and disabilities of this group started a few years ago and we are just starting to hear about what works and what doesn’t work to improve communication in those with little or no language. This podcast summarizes the evidence, which points to combinations of things, rather than things in isolation, and peeks in on ways in which interventions can be better directed and made more effective.