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Related Experiment Video

Updated: Jun 5, 2026

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Cortical areas involved in numerical processing: an intraoperative electrostimulation study.

Song Pu1, Yong-nian Li, Chen-xing Wu

  • 1Department of Neurosurgery, The First Affiliated Hospital of Harbin Medical University, Harbin, China.

Stereotactic and Functional Neurosurgery
|January 4, 2011
PubMed
Summary
This summary is machine-generated.

Mapping brain areas for numerical processing is crucial for surgery. This study found specific left parietal lobe sites for multiplication and subtraction, highlighting the need to protect these during glioma removal.

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Area of Science:

  • Neuroscience
  • Cognitive Neuroscience
  • Neurosurgery

Background:

  • Numerical processing is fundamental to daily life.
  • Mapping numerical processing areas during surgery remains under-explored.
  • Parietal lobe tumors pose challenges for preserving cognitive functions.

Purpose of the Study:

  • To identify and protect cortical areas involved in numerical processing.
  • To investigate numerical processing during intraoperative brain mapping.
  • To study patients with parietal lobe tumors undergoing resection.

Main Methods:

  • Intraoperative brain mapping under local anesthesia.
  • Performed somatosensory, language, and numerical processing tasks.
  • Focused on numerical processing tasks before glioma removal.

Main Results:

  • Identified distinct parietal lobe sites for multiplication and subtraction.
  • Observed precise spatial distribution and overlap of these numerical sites.
  • Found no specific numerical processing sites in the right hemisphere.

Conclusions:

  • Functional boundaries of numerical processing areas are vital for glioma resection.
  • The left intraparietal sulcus is critical for numerical processing.
  • The right intraparietal sulcus does not appear critically involved in numerical processing.