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'How many' and 'how much' dissociate in the parietal lobe

Francesca Lecce1, Vincent Walsh2, Daniele Didino3

  • 1UCL Institute of Cognitive Neuroscience, London, UK; Department of Neuropsychology, National Hospital for Neurology and Neurosurgery, London, UK.

Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
|September 20, 2015
PubMed
Summary

This study reveals distinct roles for the parietal lobe in quantity processing. Left intraparietal sulcus stimulation impaired "how many" (numerosity) perception, while right stimulation affected integrating "how many" and "how much" (continuous quantity) information.

Keywords:
Continuous quantityNumerosity processingParietal lobeTMS

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