Neuron. 2004 Oct 28;44(3):407-9.

The number domain- can we count on parietal cortex?

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Primate Neurocognition Laboratory, Hertie-Institute for Clinical Brain Research, Department of Cognitive Neurology, University of Tuebingen, Otfried-Mueller-Str. 27, 72076 Tuebingen, Germany. andreas.nieder@uni-tuebingen.de

Abstract

Does the primate brain contain a dedicated and localized neural circuitry for processing generic numerical information? The human parietal cortex, particularly the intraparietal sulcus (IPS), has long been implicated in processing symbolic (verbal) number information. If the IPS is indeed the site of generic numerical processing, however, its neurons should also encode nonsymbolic numerosity information. Two recent studies by Shuman and Kanwisher and by Piazza et al. published in this issue of Neuron tested this assumption...with quite different results.

PMID:: 15504322; [PubMed - indexed for MEDLINE]

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Numerical magnitude in the human parietal lobe; tests of representational generality and domain specificity. [Neuron. 2004]
Numerical magnitude in the human parietal lobe; tests of representational generality and domain specificity.
Shuman M, Kanwisher N. Neuron. 2004 Oct 28; 44(3):557-69.
Review Does the parietal cortex distinguish between "10," "ten," and ten dots? [Neuron. 2007]
Review Does the parietal cortex distinguish between "10," "ten," and ten dots?
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Number processing pathways in human parietal cortex.
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Discrete and analogue quantity processing in the parietal lobe: a functional MRI study. [Proc Natl Acad Sci U S A. 2006]
Discrete and analogue quantity processing in the parietal lobe: a functional MRI study.
Castelli F, Glaser DE, Butterworth B. Proc Natl Acad Sci U S A. 2006 Mar 21; 103(12):4693-8. Epub 2006 Mar 14.
Review How humans count: numerosity and the parietal cortex. [Neuroscientist. 2009]
Review How humans count: numerosity and the parietal cortex.
Piazza M, Izard V. Neuroscientist. 2009 Jun; 15(3):261-73.

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Cited by 8 PubMed Central articles

Developmental neuroscience of time and number: implications for autism and other neurodevelopmental disabilities. [Front Integr Neurosci. 2011]
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Allman MJ, Pelphrey KA, Meck WH. Front Integr Neurosci. 2011 Oct 14; 6:7. Epub 2012 Mar 6.
Mapping brain activation and information during category-specific visual working memory. [J Neurophysiol. 2012]
Mapping brain activation and information during category-specific visual working memory.
Linden DE, Oosterhof NN, Klein C, Downing PE. J Neurophysiol. 2012 Jan; 107(2):628-39. Epub 2011 Oct 19.
Multi-representation of symbolic and nonsymbolic numerical magnitude in Chinese number processing. [PLoS One. 2011]
Multi-representation of symbolic and nonsymbolic numerical magnitude in Chinese number processing.
Liu C, Tang H, Luo YJ, Mai X. PLoS One. 2011 Apr 26; 6(4):e19373. Epub 2011 Apr 26.

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