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Structured connectivity in the output of the cerebellar cortex

Author

Listed:
  • Kim M. Gruver

    (McGill University
    McGill University
    Allen Institute for Brain Science)

  • Jenny W. Y. Jiao

    (McGill University)

  • Eviatar Fields

    (McGill University
    McGill University)

  • Sen Song

    (Tsinghua University)

  • Per Jesper Sjöström

    (McGill University)

  • Alanna J. Watt

    (McGill University)

Abstract

The spatial organization of a neuronal circuit is critically important for its function since the location of neurons is often associated with function. In the cerebellum, the major output of the cerebellar cortex are synapses made from Purkinje cells onto neurons in the cerebellar nuclei, yet little has been known about the spatial organization of these synapses. We explored this question using whole-cell electrophysiology and optogenetics in acute sagittal cerebellar slices to produce spatial connectivity maps of cerebellar cortical output in mice. We observed non-random connectivity where Purkinje cell inputs clustered in cerebellar transverse zones: while many nuclear neurons received inputs from a single zone, several multi-zonal connectivity motifs were also observed. Single neurons receiving input from all four zones were overrepresented in our data. These findings reveal that the output of the cerebellar cortex is spatially structured and represents a locus for multimodal integration in the cerebellum.

Suggested Citation

  • Kim M. Gruver & Jenny W. Y. Jiao & Eviatar Fields & Sen Song & Per Jesper Sjöström & Alanna J. Watt, 2024. "Structured connectivity in the output of the cerebellar cortex," Nature Communications, Nature, vol. 15(1), pages 1-14, December.
    • Handle: RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-024-49339-1
    DOI: 10.1038/s41467-024-49339-1
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    References listed on IDEAS

    as
    1. Abigail L. Person & Indira M. Raman, 2012. "Purkinje neuron synchrony elicits time-locked spiking in the cerebellar nuclei," Nature, Nature, vol. 481(7382), pages 502-505, January.
    2. Daneck Lang-Ouellette & Kim M. Gruver & Amy Smith-Dijak & François G. C. Blot & Chloe A. Stewart & Pauline Vanssay de Blavous & Connie H. Li & Carter Eitrem & Charlotte Rosen & Phyllis L. Faust & Mart, 2021. "Purkinje cell axonal swellings enhance action potential fidelity and cerebellar function," Nature Communications, Nature, vol. 12(1), pages 1-13, December.
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