Non-Symbolic Numerical Distance Effect in Children With and Without Developmental Dyscalculia: A Parametric fMRI Study
| Autor: | Ernst Martin, Thomas Loenneker, Michael von Aster, Karin Kucian |
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| Přispěvatelé: | University of Zurich, Kucian, K |
| Rok vydání: | 2011 |
| Předmět: |
Male
Brain activation Dyscalculia 610 Medicine & health Neuropsychological Tests 3206 Neuropsychology and Physiological Psychology Child Development Number representation Reaction Time Developmental and Educational Psychology medicine Humans Child Brain Mapping 3204 Developmental and Educational Psychology Supplementary motor area medicine.diagnostic_test Motor Cortex Brain Mathematical Concepts Right fusiform gyrus Distance effect Magnetic Resonance Imaging Neuropsychology and Physiological Psychology medicine.anatomical_structure 10036 Medical Clinic Developmental Dyscalculia Visual Perception Female Psychology Functional magnetic resonance imaging Neuroscience Switzerland |
| Zdroj: | Developmental Neuropsychology. 36:741-762 |
| ISSN: | 1532-6942 8756-5641 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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