• Publications
  • Influence
Effects of development and enculturation on number representation in the brain
  • D. Ansari
  • Psychology, Medicine
  • Nature Reviews Neuroscience
  • 1 April 2008
A striking way in which humans differ from non-human primates is in their ability to represent numerical quantity using abstract symbols and to use these 'mental tools' to perform skills such asExpand
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Mapping numerical magnitudes onto symbols: the numerical distance effect and individual differences in children's mathematics achievement.
Although it is often assumed that abilities that reflect basic numerical understanding, such as numerical comparison, are related to children's mathematical abilities, this relationship has not beenExpand
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Impaired parietal magnitude processing in developmental dyscalculia
Developmental dyscalculia (DD) is a specific learning disability affecting the acquisition of school-level mathematical abilities in the context of otherwise normal academic achievement, withExpand
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Using developmental trajectories to understand developmental disorders.
PURPOSE In this article, the authors present a tutorial on the use of developmental trajectories for studying language and cognitive impairments in developmental disorders and compare this methodExpand
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How do symbolic and non-symbolic numerical magnitude processing skills relate to individual differences in children's mathematical skills? A review of evidence from brain and behavior
Many studies tested the association between numerical magnitude processing and mathematics achievement, but results differ depending on the number format used. Expand
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Neural correlates of symbolic number processing in children and adults
Using functional magnetic resonance imaging, we examined developmental differences in the functional neuroanatomy underlying symbolic number processing. Twelve adults and 12 children had to judge theExpand
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Nonsymbolic numerical magnitude comparison: reliability and validity of different task variants and outcome measures, and their relationship to arithmetic achievement in adults.
The numerical ratio effect (NRE) and the Weber fraction (w) are common metrics of the precision of the approximate numbers sense (ANS), a cognitive mechanism suggested to play a role in theExpand
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Age-related Changes in the Activation of the Intraparietal Sulcus during Nonsymbolic Magnitude Processing: An Event-related Functional Magnetic Resonance Imaging Study
  • D. Ansari, B. Dhital
  • Psychology, Computer Science
  • Journal of Cognitive Neuroscience
  • 1 November 2006
Numerical magnitude processing is an essential everyday skill. Functional brain imaging studies with human adults have repeatedly revealed that bilateral regions of the intraparietal sulcus areExpand
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Bridges over troubled waters: education and cognitive neuroscience
Recently there has been growing interest in and debate about the relation between cognitive neuroscience and education. Our goal is to advance the debate beyond both recitation of potentiallyExpand
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Individual differences in mathematical competence predict parietal brain activation during mental calculation
Functional neuroimaging studies have revealed that parietal brain circuits subserve arithmetic problem solving and that their recruitment dynamically changes as a function of training and development. Expand
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