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Place cell maps slowly develop via competitive learning and conjunctive coding in the dentate gyrus

Author

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  • Soyoun Kim

    (Korea Institute of Science and Technology
    Institute for Basic Science (IBS))

  • Dajung Jung

    (Korea Institute of Science and Technology
    Korea Advanced Institute of Science and Technology)

  • Sébastien Royer

    (Korea Institute of Science and Technology
    Korea University of Science and Technology)

Abstract

Place cells exhibit spatially selective firing fields that collectively map the continuum of positions in environments; how such activity pattern develops with experience is largely unknown. Here, we record putative granule cells (GCs) and mossy cells (MCs) from the dentate gyrus (DG) over 27 days as mice repetitively run through a sequence of objects fixed onto a treadmill belt. We observe a progressive transformation of GC spatial representations, from a sparse encoding of object locations and spatial patterns to increasingly more single, evenly dispersed place fields, while MCs show little transformation and preferentially encode object locations. A competitive learning model of the DG reproduces GC transformations via the progressive integration of landmark-vector cells and spatial inputs and requires MC-mediated feedforward inhibition to evenly distribute GC representations, suggesting that GCs slowly encode conjunctions of objects and spatial information via competitive learning, while MCs help homogenize GC spatial representations.

Suggested Citation

  • Soyoun Kim & Dajung Jung & Sébastien Royer, 2020. "Place cell maps slowly develop via competitive learning and conjunctive coding in the dentate gyrus," Nature Communications, Nature, vol. 11(1), pages 1-15, December.
  • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-18351-6
    DOI: 10.1038/s41467-020-18351-6
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    Cited by:

    1. Luis M. Franco & Michael J. Goard, 2024. "Differential stability of task variable representations in retrosplenial cortex," Nature Communications, Nature, vol. 15(1), pages 1-17, December.
    2. Kyerl Park & Yoonsoo Yeo & Kisung Shin & Jeehyun Kwag, 2024. "Egocentric neural representation of geometric vertex in the retrosplenial cortex," Nature Communications, Nature, vol. 15(1), pages 1-14, December.
    3. M. Agustina Frechou & Sunaina S. Martin & Kelsey D. McDermott & Evan A. Huaman & Şölen Gökhan & Wolfgang A. Tomé & Ruben Coen-Cagli & J. Tiago Gonçalves, 2024. "Adult neurogenesis improves spatial information encoding in the mouse hippocampus," Nature Communications, Nature, vol. 15(1), pages 1-14, December.
    4. Thibault Cholvin & Marlene Bartos, 2022. "Hemisphere-specific spatial representation by hippocampal granule cells," Nature Communications, Nature, vol. 13(1), pages 1-14, December.

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