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Differential spatial computations in ventral and lateral face-selective regions are scaffolded by structural connections

Author

Listed:
  • Dawn Finzi

    (Stanford University)

  • Jesse Gomez

    (Stanford University
    Princeton University)

  • Marisa Nordt

    (Stanford University)

  • Alex A. Rezai

    (Stanford University)

  • Sonia Poltoratski

    (Stanford University)

  • Kalanit Grill-Spector

    (Stanford University
    Stanford University
    Stanford University)

Abstract

Face-processing occurs across ventral and lateral visual streams, which are involved in static and dynamic face perception, respectively. However, the nature of spatial computations across streams is unknown. Using functional MRI and population receptive field (pRF) mapping, we measured pRFs in face-selective regions. Results reveal that spatial computations by pRFs in ventral face-selective regions are concentrated around the center of gaze (fovea), but spatial computations in lateral face-selective regions extend peripherally. Diffusion MRI reveals that these differences are mirrored by a preponderance of white matter connections between ventral face-selective regions and foveal early visual cortex (EVC), while connections with lateral regions are distributed more uniformly across EVC eccentricities. These findings suggest a rethinking of spatial computations in face-selective regions, showing that they vary across ventral and lateral streams, and further propose that spatial computations in high-level regions are scaffolded by the fine-grain pattern of white matter connections from EVC.

Suggested Citation

  • Dawn Finzi & Jesse Gomez & Marisa Nordt & Alex A. Rezai & Sonia Poltoratski & Kalanit Grill-Spector, 2021. "Differential spatial computations in ventral and lateral face-selective regions are scaffolded by structural connections," Nature Communications, Nature, vol. 12(1), pages 1-14, December.
    • Handle: RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-22524-2
    DOI: 10.1038/s41467-021-22524-2
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    Cited by:

    1. Marisa Nordt & Jesse Gomez & Vaidehi S. Natu & Alex A. Rezai & Dawn Finzi & Holly Kular & Kalanit Grill-Spector, 2023. "Longitudinal development of category representations in ventral temporal cortex predicts word and face recognition," Nature Communications, Nature, vol. 14(1), pages 1-16, December.

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