No Autistic Advantage in Inspection Time When Groups Are Matched Using the Raven's Progressive Matrices (original) (raw)

Abstract

Background: The Inspection Time (IT) Task measures visual processing speed and has good face validity as a method to estimate neural information processing time. It is strongly correlated with the Wechsler IQ, particularly performance IQ, in typical populations. However, conflicting results have been reported concerning IT in autism when using standard IQ estimation procedures to match group properties (Scheuffgen et al., 2000; Wallace et al., 2009). An alternative matching procedure utilizes a test of matrix reasoning ability, the Raven’s Progressive Matrices (RPM), a test for estimating general intelligence that is expected to be less affected by differences in verbal abilities than the Wechsler IQ. Autistics are known to achieve higher RPM scores than their Wechsler IQ predicts. Objectives: Investigate the relationships among IT, RPM scores and Wechsler IQ measures in autistic and typically developing individuals. Methods: We measured IT, matrix reasoning, and Wechsler IQ in 21 a...

Elise Barbeau hasn't uploaded this paper.

Let Elise know you want this paper to be uploaded.

Ask for this paper to be uploaded.