Differential spatial computations in ventral and lateral face-selective regions are scaffolded by structural connections
Year: 2021
Type: article
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.
Source: Nature Communications
Institutions: Stanford University, Princeton University
Language: English
Subfield: Cognitive Neuroscience
Field: Neuroscience
Domain: Life Sciences
Open Access status: gold
Estimated APC paid: $5,560
Awards: Development of Face Perception: Cross-sectional and Longitudinal Investigations, G1862992856, G1868717214, G4303072304, G4475131919, G4987525192, G5097059376, Development of Macromolecular Tissue in Visual Cortex and its Role in Neural Function and Behavior, G654332261, G7128961676, Functional-neuroanatomy of high-level visual cortex: a quantitative multimodal approach
OpenAlex ID: W3153684225