The current prospective cohort study investigated whether early perceptual abilities, measured at preschool age, could predict later intellectual abilities at school age in a group of 41 autistic (9 girls, 32 boys) and 57 neurotypical children (29 girls, 28 boys). More than 80% of the autistic children were considered minimally verbal.…

An increasing number of studies has investigated the latent factor structure of executive functions. Some studies found a three-factor structure of inhibition, shifting, and updating, but others could not replicate this finding. We assumed that the task choices and scoring methods might be responsible for these contradictory findings. Therefore,…

Some literature concerned with the connection between thought and language is reviewed, with reference to the development of visual perception. An experiment supports the contention that internal language can direct performance of a task of visual perception. The power of verbal labelling is discussed. (Author/CH)

Children either saw, were told about, or felt the contents of a toy tunnel. They were asked what was in the tunnel and how they knew the contents. Three year olds had difficulty identifying the sources of their knowledge. Questions that involved inference proved to be especially difficult for them. (BC)

Reviews the research literature on the abilities of infants to categorize visual information on dot patterns; schematic faces; hue; and orientation. (HOD)

Three experiments assessed the ability of children 2 to 5 years of age to infer, under very simple task conditions, what another person sees when viewing something from a position other than the children's own. Data indicates that some ability of this genre appears to exist by age 2. The data also suggests a distinction between an earlier and a…