Partial occlusion depiction and its relationship with field independence in children with ASD.

We report a study of the depiction of partial occlusion and its relationship with field independence (FI) in children with ASD. Nineteen ASD children and 29 TD children (5;6-10;0) attempted to copy two 3D occluded scenes, and also selected the 'best' depiction of these scenes in drawings by others. ASD children were not significantly different from controls on FI but were significantly delayed in partial occlusion drawing and selection, independently of chronological age (CA), nonverbal mental age (NVMA) and FI. The results suggest that the depiction of partial occlusion in children with ASD is not qualitatively distinct from that in children with typical development but is significantly and specifically delayed.