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  • Title: A Major Human White Matter Pathway Between Dorsal and Ventral Visual Cortex.
    Author: Takemura H, Rokem A, Winawer J, Yeatman JD, Wandell BA, Pestilli F.
    Journal: Cereb Cortex; 2016 May; 26(5):2205-2214. PubMed ID: 25828567.
    Abstract:
    Human visual cortex comprises many visual field maps organized into clusters. A standard organization separates visual maps into 2 distinct clusters within ventral and dorsal cortex. We combined fMRI, diffusion MRI, and fiber tractography to identify a major white matter pathway, the vertical occipital fasciculus (VOF), connecting maps within the dorsal and ventral visual cortex. We use a model-based method to assess the statistical evidence supporting several aspects of the VOF wiring pattern. There is strong evidence supporting the hypothesis that dorsal and ventral visual maps communicate through the VOF. The cortical projection zones of the VOF suggest that human ventral (hV4/VO-1) and dorsal (V3A/B) maps exchange substantial information. The VOF appears to be crucial for transmitting signals between regions that encode object properties including form, identity, and color and regions that map spatial information.
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