December 2022
Volume 22, Issue 14
Open Access
Vision Sciences Society Annual Meeting Abstract  |   December 2022
White matter tracts traveling between cortical regions associated with the dorsal and ventral visual streams predict learning a perceptual-motor task
Author Affiliations & Notes
  • Sophia Vinci-Booher
    Indiana University
  • Elizabeth Berquist
    Indiana University
  • Franco Pestilli
    University of Texas at Austin, Indiana University
  • Footnotes
    Acknowledgements  NSF-SBIR 2004877 to S.V-B. and F.P., NSF IIS-1912270, NSF IIS-1636893, NSF BCS-1734853, Microsoft Faculty Fellowship to F.P.
Journal of Vision December 2022, Vol.22, 4258. doi:https://doi.org/10.1167/jov.22.14.4258
  • Views
  • Share
  • Tools
    • Alerts
      ×
      This feature is available to authenticated users only.
      Sign In or Create an Account ×
    • Get Citation

      Sophia Vinci-Booher, Elizabeth Berquist, Franco Pestilli; White matter tracts traveling between cortical regions associated with the dorsal and ventral visual streams predict learning a perceptual-motor task. Journal of Vision 2022;22(14):4258. https://doi.org/10.1167/jov.22.14.4258.

      Download citation file:


      © ARVO (1962-2015); The Authors (2016-present)

      ×
  • Supplements
Abstract

The posterior vertical pathway (PVP) is a set of white matter tracts that directly connect cortical regions associated with the dorsal and ventral visual streams. By traveling between action-oriented regions in the dorsal stream and perception-oriented regions in the ventral stream, white matter tracts in the PVP may be particularly important for performing tasks that link action and perception. Here, we tested whether the tissue properties of PVP white matter tracts predict learning to draw novel symbols, a motor task strongly associated with visual perception processing. Using advanced diffusion tractography, we measured fractional anisotropy (FA) in the PVP tracts (i.e., TPC, pArc, MdLF-SPL, MdLF-Ang) as well as major white matter tracts within the dorsal (i.e., SLF1and2, SLF3) and ventral streams (i.e., ILF, IFOF) in 30 adult participants before they were trained on drawing novel symbols. Training consisted of 1600 symbol drawing trials, evenly distributed over the course of 4 days. We measured learning as the trial-to-trial change in symbol drawing duration. Learning occurred most rapidly during the first day of training, with significantly less learning in the following training days. Pre-training FA in the PVP tracts that travel between the dorsal and ventral streams predicted learning; pre-training FA in tracts that travel within the dorsal and ventral streams did not significantly predict learning. Overall, our results suggest a key role for the PVP in learning that may be related to its ability to facilitate interactions between dorsal and ventral streams during action.

×
×

This PDF is available to Subscribers Only

Sign in or purchase a subscription to access this content. ×

You must be signed into an individual account to use this feature.

×