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J Autism Dev Disord. 2013 Nov;43(11):2696-709. doi: 10.1007/s10803-013-1823-x.

Receptive vocabulary in boys with autism spectrum disorder: cross-sectional developmental trajectories.

Author information

1
Waisman Center, University of Wisconsin-Madison, Room 475, 1500 Highland Avenue, Madison, WI, 53705, USA, kover@wisc.edu.

Abstract

In light of evidence that receptive language may be a relative weakness for individuals with autism spectrum disorder (ASD), this study characterized receptive vocabulary profiles in boys with ASD using cross-sectional developmental trajectories relative to age, nonverbal cognition, and expressive vocabulary. Participants were 49 boys with ASD (4-11 years) and 80 typically developing boys (2-11 years). Receptive vocabulary, assessed with the Peabody Picture Vocabulary Test, was a weakness for boys with ASD relative to age and nonverbal cognition. Relative to expressive vocabulary, assessed with the Expressive Vocabulary Test, receptive vocabulary increased at a lower rate for boys with ASD. Vocabulary trajectories in ASD are distinguished from typical development; however, nonverbal cognition largely accounts for the patterns observed.

PMID:
23588510
PMCID:
PMC3797266
DOI:
10.1007/s10803-013-1823-x
[Indexed for MEDLINE]
Free PMC Article
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