ArticleBrain structure & function2020
Wide-field retinotopy reveals a new visuotopic cluster in macaque posterior parietal cortex.
Article in Brain structure & function, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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9 citing papers in PubMed, 11 citations in OpenAlex.
- Metabolic organization of macaque visual cortex reflects visual field topography and perceptual specialization.PLoS biology · 2026Article
- Expansion of a conserved architecture drives the evolution of the primate visual cortex.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Multiple loci for foveolar vision in macaque monkey visual cortex.Nature neuroscience · 2025Article
- Functional Localization of Visual Motion Area FST in Humans.Imaging neuroscience (Cambridge, Mass.) · 2025Article
- A topological solution to object segmentation and tracking.Proceedings of the National Academy of Sciences of the United States of America · 2022Article
- Symmetry Processing in the Macaque Visual Cortex.Cerebral cortex (New York, N.Y. : 1991) · 2022Article
- Myelin densities in retinotopically defined dorsal visual areas of the macaque.Brain structure & function · 2021Article
- Article
- Common functional localizers to enhance NHP & cross-species neuroscience imaging research.NeuroImage · 2021Article
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5 authors at 3 institutions in 1 country.
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Abstract
We investigated the visuotopic organization of macaque posterior parietal cortex (PPC) by combining functional imaging (fMRI) and wide-field retinotopic mapping in two macaque monkeys. Whole brain blood-oxygen-level-dependent (BOLD) signal was recorded while monkeys maintained central fixation during the presentation of large rotating wedges and expending/contracting annulus of a "shaking" fruit basket, designed to maximize the recruitment of PPC neurons. Results of the surface-based population receptive field (pRF) analysis reveal a new cluster of four visuotopic areas at the confluence of the parieto-occipital and intra-parietal sulci, in a location previously defined histologically and anatomically as the posterior intra-parietal (PIP) region. This PIP cluster groups together two recently described areas (CIP1/2) laterally and two newly identified ones (PIP1/2) medially, whose foveal representations merge in the fundus of the intra-parietal sulcus. The cluster shares borders with other visuotopic areas: V3d posteriorly, V3A/DP laterally, V6/V6A medially and LIP anteriorly. Together, these results show that monkey PPC is endowed with a dense set of visuotopic areas, as its human counterpart. The fact that fMRI and wide-field stimulation allows a functional parsing of monkey PPC offers a new framework for studying functional homologies with human PPC.
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