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Dynamic spatial coding in parietal cortex mediates tactile-motor transformation

Author

Listed:
  • Janina Klautke

    (University of Hamburg)

  • Celia Foster

    (Bielefeld University
    Bielefeld University)

  • W. Pieter Medendorp

    (Radboud University, Donders Institute for Brain, Cognition and Behaviour)

  • Tobias Heed

    (Bielefeld University
    Bielefeld University
    University of Salzburg
    University of Salzburg)

Abstract

Movements towards touch on the body require integrating tactile location and body posture information. Tactile processing and movement planning both rely on posterior parietal cortex (PPC) but their interplay is not understood. Here, human participants received tactile stimuli on their crossed and uncrossed feet, dissociating stimulus location relative to anatomy versus external space. Participants pointed to the touch or the equivalent location on the other foot, which dissociates sensory and motor locations. Multi-voxel pattern analysis of concurrently recorded fMRI signals revealed that tactile location was coded anatomically in anterior PPC but spatially in posterior PPC during sensory processing. After movement instructions were specified, PPC exclusively represented the movement goal in space, in regions associated with visuo-motor planning and with regional overlap for sensory, rule-related, and movement coding. Thus, PPC flexibly updates its spatial codes to accommodate rule-based transformation of sensory input to generate movement to environment and own body alike.

Suggested Citation

  • Janina Klautke & Celia Foster & W. Pieter Medendorp & Tobias Heed, 2023. "Dynamic spatial coding in parietal cortex mediates tactile-motor transformation," Nature Communications, Nature, vol. 14(1), pages 1-18, December.
    • Handle: RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-39959-4
    DOI: 10.1038/s41467-023-39959-4
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    References listed on IDEAS

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    1. Jacqueline P. Gottlieb & Makoto Kusunoki & Michael E. Goldberg, 1998. "The representation of visual salience in monkey parietal cortex," Nature, Nature, vol. 391(6666), pages 481-484, January.
    2. Brian M. Dekleva & Konrad P. Kording & Lee E. Miller, 2018. "Single reach plans in dorsal premotor cortex during a two-target task," Nature Communications, Nature, vol. 9(1), pages 1-12, December.
    3. Lawrence H. Snyder & Kenneth L. Grieve & Peter Brotchie & Richard A. Andersen, 1998. "Separate body- and world-referenced representations of visual space in parietal cortex," Nature, Nature, vol. 394(6696), pages 887-891, August.
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