Neural Evidence Linking Visual Object Enumeration and Attention
Journal of Cognitive Neuroscience
Spatial versus object working memory: Pet investigations
Journal of Cognitive Neuroscience
Journal of Cognitive Neuroscience
Effect of Language Switching on Arithmetic: A Bilingual fMRI Study
Journal of Cognitive Neuroscience
Effects of Aging on Arithmetic Problem-Solving: An Event-related Brain Potential Study
Journal of Cognitive Neuroscience
Response-Selection-Related Parietal Activation during Number Comparison
Journal of Cognitive Neuroscience
Journal of Cognitive Neuroscience
Parietal Representation of Symbolic and Nonsymbolic Magnitude
Journal of Cognitive Neuroscience
The Quantitative Nature of a Visual Task Differentiates between Ventral and Dorsal Stream
Journal of Cognitive Neuroscience
Contribution of Hand Motor Circuits to Counting
Journal of Cognitive Neuroscience
Journal of Cognitive Neuroscience
Order and magnitude share a common representation in parietal cortex
Journal of Cognitive Neuroscience
The role of right and left parietal lobes in the conceptual processing of numbers
Journal of Cognitive Neuroscience
Neural correlates of symbolic number comparison in developmental dyscalculia
Journal of Cognitive Neuroscience
Probabilistic judgment on a coarser scale
Cognitive Systems Research
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Positron emission tomography was used to localize the cerebral networks specifically involved in three basic numerical processes: arabic numeral processing, numerical magnitude comparison, and retrieval of simple addition facts. Relative cerebral blood flow changes were measured while normal volunteers were resting with eyes closed, making physical judgment on nonnumerical characters or arabic digits, comparing, or adding the same digits. Processing arabic digits bilaterally produced a large nonspecific activation of occipito-parietal areas, as well as a specific activation of the right anterior insula. Comparison and simple addition fact retrieval revealed a fronto-parietal network involving mainly the left intraparietal sulcus, the superior parietal lobule and the precentral gyrus. Comparison also activated, but to a lesser extent, the right superior parietal lobe, whereas addition also activated the orbito-frontal areas and the anterior insula in the right hemisphere. Implications for current anatomo-functional models of numerical cognition are drawn.