http://www.sciencedaily.com/releases/2012/11/121109111246.htm
ScienceDaily (Nov. 9, 2012) — A new study of eight child prodigies suggests a possible link between these children's special skills and autism. Of the eight prodigies studied, three had a diagnosis of autism spectrum disorders. As a group, the prodigies also tended to have slightly elevated scores on a test of autistic traits, when compared to a control group.
In addition, half of the prodigies had a family member or a first- or second-degree relative with an autism diagnosis.
The fact that half of the families and three of the prodigies themselves were affected by autism is surprising because autism occurs in only one of 120 individuals, said Joanne Ruthsatz, lead author of the study and assistant professor of psychology at Ohio State University's Mansfield campus.
"The link between child prodigies and autism is strong in our study," Ruthsatz said. "Our findings suggest child prodigies have traits in common with autistic children, but something is preventing them from displaying the deficits we associate with the disorder."
The study also found that while child prodigies had elevated general intelligence scores, where they really excelled was in working memory -- all of them scored above the 99th percentile on this trait.
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Ruthsatz said the most striking data was that which identified autistic traits among the prodigies.
The prodigies showed a general elevation in autistic traits compared to the control group, but this elevation was on average even smaller than that seen in high-functioning autistic people diagnosed with Asperger's syndrome.
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The prodigies did score higher than the control group and the Asperger's group on one subsection of the autism assessment: attention to detail.
"These prodigies had an absolutely amazing memory for detail," she said. "They don't miss anything, which certainly helps them achieve the successes they have."
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"Overall, what we found is that prodigies have an elevated general intelligence and exceptional working memory, along with an elevated autism score, with exceptional attention to detail," Ruthsatz said.
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"But while autistic savants display many of the deficits commonly associated with autism, the child prodigies do not," Ruthsatz said. "The question is why."
The answer may be some genetic mutation that allows prodigies to have the extreme talent found in savants, but without the deficits seen in autism. But the answer will require more study, Ruthsatz said.
"Our findings suggest that prodigies may have some moderated form of autism that actually enables their extraordinary talent."
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