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ERIC Number: EJ951585
Record Type: Journal
Publication Date: 2004-Oct
Pages: 12
Abstractor: As Provided
ISBN: N/A
ISSN: ISSN-0021-9630
EISSN: N/A
Do Children with Autism Perceive Second-Order Relational Features? The Case of the Thatcher Illusion
Rouse, Helen; Donnelly, Nick; Hadwin, Julie A.; Brown, Tony
Journal of Child Psychology and Psychiatry, v45 n7 p1246-1257 Oct 2004
Background: This study presents two experiments that investigated whether children with autism were susceptible to the Thatcher illusion. Perception of the Thatcher illusion requires being able to compute second-order configural relations for facial stimuli. Method: In both experiments children with autism were matched for non-verbal and verbal ability with a group of children with moderate (non-specific) mental retardation (MLD) and a group of typically developing children respectively. Participants were asked to detect the "unusual" face in a two-alternative-forced-choice version of the Margaret Thatcher illusion with grey-scale (Experiment 1) and monochrome "Mooney" face images (Experiment 2). In Experiment 1 participants also performed a control task where buildings had been doctored in the same way as the facial stimuli. Results: Children with autism were as susceptible to the Thatcher illusion as both control groups, in terms of accuracy and reaction time to make decisions about which face was unusual. Children with autism performed more accurately than children with MLD in the buildings task. Conclusion: Children with autism are able to compute second-order configural features in faces and exhibit no difference in face processing, relative to appropriate control groups.
Wiley-Blackwell. 350 Main Street, Malden, MA 02148. Tel: 800-835-6770; Tel: 781-388-8598; Fax: 781-388-8232; e-mail: cs-journals@wiley.com; Web site: http://bibliotheek.ehb.be:2429/WileyCDA/
Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Grant or Contract Numbers: N/A