ERIC Number: EJ1038458
Record Type: Journal
Publication Date: 2014-May
Abstractor: As Provided
Reference Count: 102
Face and Object Discrimination in Autism, and Relationship to IQ and Age
Pallett, Pamela M.; Cohen, Shereen J.; Dobkins, Karen R.
Journal of Autism and Developmental Disorders, v44 n5 p1039-1054 May 2014
The current study tested fine discrimination of upright and inverted faces and objects in adolescents with Autism Spectrum Disorder (ASD) as compared to age- and IQ-matched controls. Discrimination sensitivity was tested using morphed faces and morphed objects, and all stimuli were equated in low-level visual characteristics (luminance, contrast, spatial frequency make-up). Participants with ASD exhibited slight, non-significant impairments in discrimination sensitivity for faces, yet significantly enhanced discrimination sensitivity for objects. The ASD group also showed a protracted development of face and object inversion effects. Finally, for ASD participants, face sensitivity improved with increasing IQ while object sensitivity improved with age. By contrast, for controls, face sensitivity improved with age, but neither face nor object sensitivity was influenced by IQ. These findings suggest that individuals with ASD follow a qualitatively different path in the development of face and object processing abilities.
Descriptors: Autism, Pervasive Developmental Disorders, Visual Discrimination, Intelligence Quotient, Age Differences, Adolescents
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Authoring Institution: N/A