Superior nonverbal intelligence in children with high-functioning autism or Asperger's syndrome.

Abstract: Some early studies showed discordance in cognitive strengths and weaknesses in individuals with high-functioning autism (HFA) or Asperger''s syndrome (AS). The present study administered the French version of Colored Raven''s Progressive Matrices in 14 children with HFA/AS and in 26 chronological age matched peers with typical development. We found a trend of superior nonverbal performance in Raven''s Test in our HFA/AS participants compared to controls, and this “superiority” achieved statistical significance in the HFA/AS subgroup with a FIQ≥90. Superior fluid intelligence seemed to exist in individuals both with HFA and with AS. A complementary use of both the Raven''s Test and the Wechsler Intelligence Scales seems to be important for exploring the domain-specific as well as multidimensional profiles in individuals with autism. [Copyright &y& Elsevier]

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