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Direct linkAnketell, Pamela M.; Saunders, Kathryn J.; Gallagher, Stephen M.; Bailey, Clare; Little, Julie-Anne – Journal of Autism and Developmental Disorders, 2015
Anomalous visual processing has been described in individuals with autism spectrum disorder (ASD) but relatively few studies have profiled visual acuity (VA) in this population. The present study describes presenting VA in children with ASD (n = 113) compared to typically developing controls (n = 206) and best corrected visual acuity (BCVA) in a…
Descriptors: Autism, Pervasive Developmental Disorders, Visual Acuity, Comparative Analysis
The Integration of Occlusion and Disparity Information for Judging Depth in Autism Spectrum Disorder
Smith, Danielle; Ropar, Danielle; Allen, Harriet A. – Journal of Autism and Developmental Disorders, 2017
In autism spectrum disorder (ASD), atypical integration of visual depth cues may be due to flattened perceptual priors or selective fusion. The current study attempts to disentangle these explanations by psychophysically assessing within-modality integration of ordinal (occlusion) and metric (disparity) depth cues while accounting for sensitivity…
Descriptors: Autism, Pervasive Developmental Disorders, Visual Acuity, Cues
Albrecht, Matthew A.; Stuart, Geoffrey W.; Falkmer, Marita; Ordqvist, Anna; Leung, Denise; Foster, Jonathan K.; Falkmer, Torbjorn – Journal of Autism and Developmental Disorders, 2014
Recently, there has been heightened interest in suggestions of enhanced visual acuity in autism spectrum disorders (ASD) which was sparked by evidence that was later accepted to be methodologically flawed. However, a recent study that claimed children with ASD have enhanced visual acuity (Brosnan et al. in "J Autism Dev Disord"…
Descriptors: Autism, Pervasive Developmental Disorders, Visual Acuity, Children
Bolte, Sven; Schlitt, Sabine; Gapp, Volker; Hainz, Daniela; Schirman, Shella; Poustka, Fritz; Weber, Bernhard; Freitag, Christine; Ciaramidaro, Angela; Walter, Henrik – Journal of Autism and Developmental Disorders, 2012
Autism spectrum disorders (ASD) have been associated with sensory hypersensitivity. A recent study reported visual acuity (VA) in ASD in the region reported for birds of prey. The validity of the results was subsequently doubted. This study examined VA in 34 individuals with ASD, 16 with schizophrenia (SCH), and 26 typically developing (TYP).…
Descriptors: Schizophrenia, Autism, Visual Acuity, Pervasive Developmental Disorders
Koh, Hwan Cui; Milne, Elizabeth; Dobkins, Karen – Journal of Autism and Developmental Disorders, 2010
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…
Descriptors: Autism, Adolescents, Visual Acuity, Spatial Ability
Vision in Children and Adolescents with Autistic Spectrum Disorder: Evidence for Reduced Convergence
Milne, Elizabeth; Griffiths, Helen; Buckley, David; Scope, Alison – Journal of Autism and Developmental Disorders, 2009
Evidence of atypical perception in individuals with ASD is mainly based on self report, parental questionnaires or psychophysical/cognitive paradigms. There have been relatively few attempts to establish whether binocular vision is enhanced, intact or abnormal in those with ASD. To address this, we screened visual function in 51 individuals with…
Descriptors: Autism, Vision, Integrity, Visual Acuity
