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Cited by 322Autism Spectrum Disorder ResearchVisual perception and processing mechanismsFace Recognition and Perception

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Abnormal global processing along the dorsal visual pathway in autism: a possible mechanism for weak visuospatial coherence?

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Pellicano, Elizabeth, Gibson, Lisa, Maybery, Murray, Durkin, Kevin, Badcock, David R.·2005·Neuropsychologia
DOI 10.1016/j.neuropsychologia.2004.10.003
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Abstract

Frith and Happe (Frith, U., & Happe, F. (1994). Autism: Beyond theory of mind. Cognition, 50, 115-132) argue that individuals with autism exhibit 'weak central coherence': an inability to integrate elements of information into coherent wholes. Some authors have speculated that a high-level impairment might be present in the dorsal visual pathway in autism, and furthermore, that this might account for weak central coherence, at least at the visuospatial level. We assessed the integrity of the dorsal visual pathway in children diagnosed with an autism spectrum disorder (ASD), and in typically developing children, using two visual tasks, one examining functioning at higher levels of the dorsal cortical stream (Global Dot Motion (GDM)), and the other assessing lower-level dorsal stream functioning (Flicker Contrast Sensitivity (FCS)). Central coherence was tested using the Children's Embedded Figures Test (CEFT). Relative to the typically developing children, the children with ASD had shorter CEFT latencies and higher GDM thresholds but equivalent FCS thresholds. Additionally, CEFT latencies were inversely related to GDM thresholds in the ASD group. These outcomes indicate that the elevated global motion thresholds in autism are the result of high-level impairments in dorsal cortical regions. Weak visuospatial coherence in autism may be in the form of abnormal cooperative mechanisms in extra-striate cortical areas, which might contribute to differential performance when processing stimuli as Gestalts, including both dynamic (i.e., global motion perception) and static (i.e., disembedding performance) stimuli.

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Metadata

Authors
Pellicano, E., Gibson, L., Maybery, M., Durkin, K., & Badcock, D. R.
Affiliations
The University of Western Australia (AU)
Corresponding author
Pellicano, Elizabeth
ORCID
Venue
Neuropsychologia
Publisher
Elsevier BV
Published
2005
Volume
43
Issue
7
Pages
1044-1053
ISSN
0028-3932 (ISSN-L)
DOI
10.1016/j.neuropsychologia.2004.10.003
OpenAlex
W2113649077
Cited by
322
References
59
Citations by year
2026: 3 · 2025: 10 · 2024: 3 · 2023: 6 · 2022: 7 · 2021: 13 · 2020: 15 · 2019: 22 · 2018: 10 · 2017: 19 · 2016: 16 · 2015: 24 · 2014: 32 · 2013: 21 · 2012: 19
FWCI
5.74
Type
journal article
Language
en
Open access
Licence
Locations
  • Neuropsychologia (publishedVersion)
  • PubMed (publishedVersion)
  • Explore Bristol Research (publishedVersion)
  • UCL Discovery (University College London) (submittedVersion, cc-by-nc-nd)
  • UWA Profiles and Research Repository (UWA) (submittedVersion)
Funders
Australian Research Council (A00000836, DP0346084, DP0452312)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Autism Spectrum Disorder Research
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Visual perception and processing mechanisms
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Face Recognition and Perception
Keywords
autism spectrum disorder, dorsal visual pathway, weak central coherence, global motion perception, Children's Embedded Figures Test, disembedding, extrastriate cortex, global processing
MeSH terms
Autistic Disorder, Child, Cues, Discrimination, Psychological, Female, Humans, Male, Mental Processes, Motion Perception, Pattern Recognition, Visual, Reference Values, Space Perception, Visual Pathways, Contrast Sensitivity, Statistics, Nonparametric

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