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A Place for Zero in the Brain.

Luca Rinaldi1, Luisa Girelli2

  • 1Department of Brain and Behavioural Sciences, University of Pavia, Pavia, Italy; Milan Center for Neuroscience, Milano, Italy.

Trends in Cognitive Sciences
|July 7, 2016
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Summary
This summary is machine-generated.

New research shows the primate brain

Keywords:
number lineparietofrontal systemzero numerosity

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Area of Science:

  • Cognitive neuroscience
  • Comparative psychology

Background:

  • The numerical cognition system is traditionally thought to exclude zero.
  • Previous models of numerical processing did not account for the representation of empty sets.

Purpose of the Study:

  • To investigate whether the primate brain can represent numerosity zero.
  • To determine if zero is processed within the existing numerical magnitude system.

Main Methods:

  • Utilized neuroimaging techniques to examine brain activity in primates.
  • Designed behavioral tasks to assess the processing of numerical quantities, including zero.

Main Results:

  • Demonstrated that the primate parietofrontal magnitude system encodes zero as an abstract quantity.
  • Evidence suggests zero is integrated into the continuous numerical scale.

Conclusions:

  • The primate numerical system is capable of representing zero.
  • This finding challenges established theories of numerical cognition and expands our understanding of the numerical continuum.