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Probing the Brain in Autism Using fMRI and Diffusion Tensor Imaging
Published on: September 12, 2011
Assessing intelligence at autism diagnosis: mission impossible? Testability and cognitive profile of autistic
Valérie Courchesne1, Dominique Girard1,2, Claudine Jacques1,3
1Autism Research Group, CIUSSS du Nord-de-l'ïle-de-Montréal, 7070 boulevard Perras, Montreal, QC, H1E 1A4, Canada.
Abstract:
Intelligence in minimally verbal children on the autism spectrum (AS) is at risk of being underestimated. The present study investigated testability and cognitive profile of preschool autistic children using conventional tools and strength-informed tools. Fifty-two AS children and fifty-four typical children matched on age (31-77 months) were assessed. Testability increased with age in both groups, was generally lower in AS children, but not related to their test performance. Typical children performed significantly better than AS children on conventional tools, but performance of both groups was similar on strength-informed tools. Differences of performance across tests were much greater in the AS group. These results emphasize the heterogenous, yet characteristic, cognitive profile in preschool children, and introduce the usefulness of flexible testing.
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