Cited by 27Autism Spectrum Disorder ResearchVisual perception and processing mechanismsFace Recognition and Perception

Integrity of lateral and feedbackward connections in visual processing in children with pervasive developmental disorder

Kemner, C., Lamme, V.A.F., Kovacs, I., van Engeland, H.·2007·Neuropsychologia

Abstract

Enhanced visual detail processing in subjects with pervasive developmental disorder (PDD) has been related to impairments in feature integration. The functional integrity of two types of neuronal connections involved in visual feature integration, namely horizontal and feedbackward connections, were tested. Sixteen children with PDD and 17 age- and IQ-matched control children (mean age 13.3 years) were included. In a texture segregation task the difference in ERP response to homogeneous and checkered visual stimuli was determined. Additionally, in a contour integration task subjects had to point out a contour consisting of colinearly aligned Gabor signals in backgrounds increasing in noise. Children with PDD showed a normal performance on the contour integration task, suggesting that neurons in the primary visual cortex of children with PDD can effectively integrate the activity of local detectors that process different aspects of the same object information by making use of long-range lateral connections. The amplitude of ERP activity related to texture segregation was also not different between the PDD and control groups, indicating functional visual feedback mechanisms between V1 and higher order areas in subjects with PDD. However, a difference in latency of texture-segmentation related activity between the groups was noted. This effect did not reach significance, which could be due to the small N of the study. Therefore, the data need replication in a study with larger s…

Integrity signals

Registry

Crossref · 10.1016/j.neuropsychologia.2006.09.016

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  • There is no evidence for a performance deficit in contour integration tasks amongst ASD populations.

    “Thus there is no evidence for a performance deficit in contour integration tasks amongst ASD populations.”

    From Vision in autism spectrum disorders (2009) · cites this paper as Kemner et al., 2007

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Authors
Kemner, C., Lamme, V. A. F., Kovacs, I., & van Engeland, H.
Affiliations
  • University Medical Center Utrecht (NL)
  • University of Amsterdam (NL)
Corresponding author
Kemner, C.
Venue
Neuropsychologia
Publisher
Elsevier BV
Published
2007-01
Volume
45
Issue
6
Pages
1293-1298
ISSN
0028-3932 (ISSN-L)
OpenAlex
W2160637170
Cited by
27
References
40
Citations by year
2023: 1 · 2022: 2 · 2021: 2 · 2020: 1 · 2019: 2 · 2016: 1 · 2015: 2 · 2013: 7 · 2012: 1
FWCI
0.97
Type
journal article
Language
en
Open access
closed
Locations
  • Neuropsychologia (publishedVersion)
  • PubMed (publishedVersion)
  • Research Publications (Maastricht University) (publishedVersion)
  • UvA-DARE (University of Amsterdam) (publishedVersion)
  • Research Publications (Maastricht University) (submittedVersion)
  • Data Archiving and Networked Services (DANS) (submittedVersion)
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
pervasive developmental disorders, autism spectrum disorder, visual feature integration, lateral connections, feedback connections, primary visual cortex, texture segregation, contour integration, event-related potentials
MeSH terms
Adolescent, Child, Child Development Disorders, Pervasive, Color, Data Interpretation, Statistical, Electroencephalography, Female, Humans, Functional Laterality, Light, Male, Neuropsychological Tests, Orientation, Photic Stimulation, Visual Fields, Visual Perception, Feedback, Psychological

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