Visual Field Map Clusters in Macaque Extrastriate Visual Cortex
Name
Kolster-2009-Visual Field Map Clu.pdf
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Author(s)
Kolster, Hauke
Mandeville, Joseph B.
Arsenault, John T.
Vanduffel, Wim
Ekstrom, Leeland B.
Wald, Lawrence
Date Issued
May 2009
Journal
Journal of Neuroscience
Publisher
Society for Neuroscience
Citation
Kolster, Hauke et al. “Visual Field Map Clusters in Macaque Extrastriate Visual Cortex.” J. Neurosci. 29.21 (2009): 7031-7039. © 2009 The Society for Neuroscience
Version
Final published version
Abstract
The macaque visual cortex contains >30 different functional visual areas, yet surprisingly little is known about the underlying organizational principles that structure its components into a complete "visual" unit. A recent model of visual cortical organization in humans suggests that visual field maps are organized as clusters. Clusters minimize axonal connections between individual field maps that represent common visual percepts, with different clusters thought to carry out different functions. Experimental support for this hypothesis, however, is lacking in macaques, leaving open the question of whether it is unique to humans or a more general model for primate vision. Here we show, using high-resolution blood oxygen level-dependent functional magnetic resonance imaging data in the awake monkey at 7 T, that the middle temporal area (area MT/V5) and its neighbors are organized as a cluster with a common foveal representation and a circular eccentricity map. This novel view on the functional topography of area MT/V5 and satellites indicates that field map clusters are evolutionarily preserved and may be a fundamental organizational principle of the Old World primate visual cortex.
MIT Department
Harvard University--MIT Division of Health Sciences and Technology
Massachusetts Institute of Technology. Department of Nuclear Science and Engineering
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1523/jneurosci.0518-09.2009
