The role of the left intraparietal sulcus in the relationship between symbolic number processing and children's arithmetic competence
| Autor: | Gavin R. Price, D. Adam McLean, Daniel Ansari, Stephanie Bugden |
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| Rok vydání: | 2012 |
| Předmět: |
Male
Symbolism Time Factors genetic structures Neural substrate Symbolic number processing Cognitive Neuroscience Left intraparietal sulcus Intraparietal sulcus Neuropsychological Tests Arithmetic skills behavioral disciplines and activities 050105 experimental psychology Arabic numerals Correlation 03 medical and health sciences Fluency 0302 clinical medicine Parietal Lobe Reaction Time Humans Learning Mathematical ability 0501 psychology and cognitive sciences Arithmetic Child Competence (human resources) Children Brain Mapping Original research 05 social sciences Magnetic Resonance Imaging Reading Female Psychology Numerical ratio effect Neurocognitive Mathematics 030217 neurology & neurosurgery |
| Zdroj: | Paediatrics Publications |
| Popis: | The neural foundations of arithmetic learning are not well understood. While behavioral studies have revealed relationships between symbolic number processing and individual differences in children's arithmetic performance, the neurocognitive mechanisms that bind symbolic number processing and arithmetic are unknown. The current fMRI study investigated the relationship between children's brain activation during symbolic number comparison (Arabic digits) and individual differences in arithmetic fluency. A significant correlation was found between the numerical ratio effect on reaction times and accuracy and children's arithmetic scores. Furthermore, children with a stronger neural ratio effect in the left intraparietal sulcus (IPS) during symbolic number processing exhibited higher arithmetic scores. Previous research has demonstrated that activation of the IPS during numerical magnitude processing increases over the course of development, and that the left IPS plays an important role in symbolic number processing. The present findings extend this knowledge to show that children with more mature response modulation of the IPS during symbolic number processing exhibit higher arithmetic competence. These results suggest that the left IPS is a key neural substrate for the relationship between the relative of precision of the representation of numerical magnitude and school-level arithmetic competence. © 2012 Elsevier Ltd. |
| Databáze: | OpenAIRE |
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