Cited by 58Autism Spectrum Disorder ResearchVisual perception and processing mechanismsFace Recognition and Perception

An fMRI-study of locally oriented perception in autism: altered early visual processing of the block design test

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Bölte, S., Hubl, D., Dierks, T., Holtmann, M., Poustka, F.·2008·Journal of Neural Transmission

Abstract

Autism has been associated with enhanced local processing on visual tasks. Originally, this was based on findings that individuals with autism exhibited peak performance on the block design test (BDT) from the Wechsler Intelligence Scales. In autism, the neurofunctional correlates of local bias on this test have not yet been established, although there is evidence of alterations in the early visual cortex. Functional MRI was used to analyze hemodynamic responses in the striate and extrastriate visual cortex during BDT performance and a color counting control task in subjects with autism compared to healthy controls. In autism, BDT processing was accompanied by low blood oxygenation level-dependent signal changes in the right ventral quadrant of V2. Findings indicate that, in autism, locally oriented processing of the BDT is associated with altered responses of angle and grating-selective neurons, that contribute to shape representation, figure-ground, and gestalt organization. The findings favor a low-level explanation of BDT performance in autism.

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Crossref · 10.1007/s00702-007-0850-1

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  • Bölte et al. (2008) found that the most significant result was a reduction in the activation of V2v between ASD and control groups while performing the BDT, despite equivalent behavioural performance.

    “The most significant result was a reduction in the activation of V2v between ASD and control groups while performing the BDT, despite equivalent behavioural performance.”

    From Vision in autism spectrum disorders (2009) · cites this paper as Bölte et al. (2008)

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Authors
Bölte, S., Hubl, D., Dierks, T., Holtmann, M., & Poustka, F.
Affiliations
  • Goethe University Frankfurt (DE)
  • University Hospital of Bern (CH)
Corresponding author
Bölte, S.
Venue
Journal of Neural Transmission
Published
2008-02-26
Volume
115
Issue
3
Pages
545-552
ISSN
  • 0300-9564 (ISSN-L)
  • 1435-1463
OpenAlex
W2036673089
Cited by
58
References
63
Citations by year
2026: 1 · 2024: 2 · 2023: 2 · 2022: 1 · 2021: 2 · 2020: 2 · 2019: 5 · 2018: 2 · 2017: 2 · 2016: 3 · 2015: 1 · 2014: 7 · 2013: 6 · 2012: 3
FWCI
3.27
Type
journal article
Language
en
Open access
Locations
  • Journal of Neural Transmission (publishedVersion)
  • PubMed (publishedVersion)
  • BORIS (University Library Bern) (submittedVersion, other-oa)
  • Open Access CRIS of the University of Bern
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, local processing bias, Block Design Test, early visual processing, V2, primary visual cortex, extrastriate cortex, shape representation, figure-ground perception
MeSH terms
Adolescent, Adult, Autistic Disorder, Brain Mapping, Humans, Magnetic Resonance Imaging, Male, Neuropsychological Tests, Photic Stimulation, Visual Perception

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