Anisotropic encoding of three-dimensional space by place cells and grid cells

Robin Hayman, Madeleine A. Verriotis, Aleksandar Jovalekic, Andre Fenton, Kathryn J. Jeffery

Research output: Contribution to journalArticle

Abstract

The subjective sense of space may result in part from the combined activity of place cells in the hippocampus and grid cells in posterior cortical regions such as the entorhinal cortex and pre-and parasubiculum. In horizontal planar environments, place cells provide focal positional information, whereas grid cells supply odometric (distance measuring) information. How these cells operate in three dimensions is unknown, even though the real world is three-dimensional. We investigated this issue in rats exploring two different kinds of apparatus: a climbing wall (the 'pegboard') and a helix. Place and grid cell firing fields had normal horizontal characteristics but were elongated vertically, with grid fields forming stripes. It seems that grid cell odometry (and by implication path integration) is impaired or absent in the vertical domain, at least when the rat itself remains horizontal. These findings suggest that the mammalian encoding of three-dimensional space is anisotropic.

Original languageEnglish (US)
Pages (from-to)1182-1190
Number of pages9
JournalNature Neuroscience
Volume14
Issue number9
DOIs
StatePublished - Sep 2011

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Entorhinal Cortex
Hippocampus
Grid Cells
Place Cells

ASJC Scopus subject areas

  • Neuroscience(all)

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Anisotropic encoding of three-dimensional space by place cells and grid cells. / Hayman, Robin; Verriotis, Madeleine A.; Jovalekic, Aleksandar; Fenton, Andre; Jeffery, Kathryn J.

In: Nature Neuroscience, Vol. 14, No. 9, 09.2011, p. 1182-1190.

Research output: Contribution to journalArticle

Hayman, R, Verriotis, MA, Jovalekic, A, Fenton, A & Jeffery, KJ 2011, 'Anisotropic encoding of three-dimensional space by place cells and grid cells', Nature Neuroscience, vol. 14, no. 9, pp. 1182-1190. https://doi.org/10.1038/nn.2892
Hayman, Robin ; Verriotis, Madeleine A. ; Jovalekic, Aleksandar ; Fenton, Andre ; Jeffery, Kathryn J. / Anisotropic encoding of three-dimensional space by place cells and grid cells. In: Nature Neuroscience. 2011 ; Vol. 14, No. 9. pp. 1182-1190.
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