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Local and Global Visual Processing in 3-Year-Olds With and Without Autism
Elisabeth Nilsson Jobs1,2,3, Terje Falck-Ytter4,5,6, Sven Bölte5,6,7
1Uppsala Child and Baby Lab, Department of Psychology, Uppsala University, 751 42, Uppsala, Sweden. elisabeth.nilsson_jobs@psyk.uu.se.
Journal of Autism and Developmental Disorders
|February 8, 2018
Summary
Young children with Autism Spectrum Disorder (ASD) show enhanced local visual processing skills. Specifically, the Hidden Pictures task identified ASD in three-year-olds, aiding early detection.
Area of Science:
- Developmental Psychology
- Neurodevelopmental Disorders
- Visual Perception
Background:
- Understanding visual processing in young children with Autism Spectrum Disorder (ASD) is crucial but remains limited.
- Early identification of ASD can significantly improve intervention outcomes.
Purpose of the Study:
- To investigate visual local and global perception in three-year-old siblings at high familial risk for ASD.
- To determine if specific visual processing tasks can differentiate children with ASD from those without.
Main Methods:
- A cohort of 35 three-year-old siblings of children with ASD and 14 typically developing controls were assessed.
- Local visual perception was evaluated using the Children's Embedded Figures Test, Hidden Pictures, and Figure-Ground tasks.
- Global visual perception was assessed with the Closure and Fragmented Picture Test.
Main Results:
- Children diagnosed with ASD demonstrated significantly enhanced performance on the local task 'Hidden Pictures'.
- This enhanced local processing ability differentiated children with ASD from siblings not diagnosed with ASD and controls.
Conclusions:
- Enhanced local visual processing, particularly in tasks like Hidden Pictures, may serve as an early indicator for Autism Spectrum Disorder in young children.
- These findings contribute to a better understanding of visual perception differences in early childhood ASD.
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