ERIC Number: EJ862668
Record Type: Journal
Publication Date: 2009-Dec
Abstractor: As Provided
Reference Count: 0
Brief Report: Further Evidence for Inner Speech Deficits in Autism Spectrum Disorders
Wallace, Gregory L.; Silvers, Jennifer A.; Martin, Alex; Kenworthy, Lauren E.
Journal of Autism and Developmental Disorders, v39 n12 p1735-1739 Dec 2009
Recent research indicates that individuals with autism do not effectively use inner speech during the completion of cognitive tasks. We used Articulatory Suppression (AS) to interfere with inner speech during completion of alternate items from the Tower of London (TOL). AS detrimentally affected TOL performance among typically developing (TD) adolescents (n = 25), but did not significantly diminish performance among adolescents with high functioning (IQ greater than 80) autism spectrum disorders (n = 28). Moreover, the TD group's TOL performance under AS was indistinguishable from the autism group's impaired baseline TOL performance. These findings suggest that diminished inner speech usage among individuals with high functioning autism spectrum disorders (relative to TD controls) may contribute to executive dysfunction associated with these disorders.
Descriptors: Inner Speech (Subvocal), Autism, Adolescents, Pervasive Developmental Disorders, Speech Impairments, Barriers, Comparative Analysis, Cognitive Processes
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Authoring Institution: N/A