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Non-symbolic numerical distance effect in children with and without developmental dyscalculia: a parametric fMRI study.
Journal article

Non-symbolic numerical distance effect in children with and without developmental dyscalculia: a parametric fMRI study.

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  • 2011-07-19
Published in:
  • Developmental neuropsychology. - 2011
Brain
Brain Mapping
Child
Child Development
Dyscalculia
Female
Humans
Magnetic Resonance Imaging
Male
Mathematical Concepts
Motor Cortex
Neuropsychological Tests
Reaction Time
Switzerland
Visual Perception
English This study investigated areas of brain activation related to non-symbolic distance effects in children with and without developmental dyscalculia (DD). We examined 15 children with DD (11.3 years) and 15 controls (10.6 years) by means of functional magnetic resonance imaging (fMRI). Both groups displayed similar behavioral performance, but differences in brain activation were observed, particularly in the supplementary motor area and the right fusiform gyrus, where children with DD demonstrated stronger activation. These results suggest that dyscalculic children engage areas attributed to higher difficulty in response selection more than control children, possibly due to a deficient development of a spatial number representation in DD.
Language
  • English
Open access status
closed
Identifiers
Persistent URL
https://sonar.ch/global/documents/96348
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