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- Title
Spatial Contrast Sensitivity in Adolescents with Autism Spectrum Disorders.
- Authors
Hwan Cui Koh; Milne, Elizabeth; Dobkins, Karen
- Abstract
Adolescents with autism spectrum disorders (ASD) and typically developing (TD) controls underwent a rigorous psychophysical assessment that measured contrast sensitivity to seven spatial frequencies (0.5–20 cycles/degree). A contrast sensitivity function (CSF) was then fitted for each participant, from which four measures were obtained: visual acuity, peak spatial frequency, peak contrast sensitivity, and contrast sensitivity at a low spatial frequency. There were no group differences on any of the four CSF measures, indicating no differential spatial frequency processing in ASD. Although it has been suggested that detail-oriented visual perception in individuals with ASD may be a result of differential sensitivities to low versus high spatial frequencies, the current study finds no evidence to support this hypothesis.
- Subjects
AUTISM spectrum disorders; AUTISM in adolescence; DEVELOPMENTAL disabilities; VISUAL acuity; VISUAL perception; SENSITIVITY analysis; CONTRAST sensitivity (Vision); MATHEMATICAL models; VISUAL discrimination
- Publication
Journal of Autism & Developmental Disorders, 2010, Vol 40, Issue 8, p978
- ISSN
0162-3257
- Publication type
Article
- DOI
10.1007/s10803-010-0953-7