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Dual Access to Semantics in Autism: Is Pictorial Access Superior to Verbal Access?
Author(s) -
Kamio Yoko,
Toichi Motomi
Publication year - 2000
Publication title -
journal of child psychology and psychiatry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.652
H-Index - 211
eISSN - 1469-7610
pISSN - 0021-9630
DOI - 10.1111/1469-7610.00673
Subject(s) - psychology , autism , semantics (computer science) , dual (grammatical number) , autism spectrum disorder , nonverbal communication , cognitive psychology , developmental psychology , linguistics , computer science , programming language , philosophy
The main aim of the present study was to compare pictures and words with respect to access to semantic systems in autism using a semantic priming paradigm. A word completion task was conducted using both within‐modality (word‐word, WW) and cross‐modality (picture‐word, PW) conditions on a group of high‐functioning adolescents and adults with autism ( N = 20) and a control group ( N = 20) matched on chronological age, mental age, Verbal IQ and Performance IQ. Both groups showed semantic priming effects in both modality conditions, generating significantly more responses for related prime‐target pairs than for unrelated pairs. Although the control group performed similarly on both priming tasks, the autistic group performed significantly better on a PW task than on a WW task. These findings suggest the possible advantage of pictures over words in access to semantics in autism. The theoretical implications are discussed in terms of functional asymmetry between verbal and pictorial semantic operations that may be specific to autism.