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Curvature-processing network in macaque visual cortex.

ABSTRACT: Our visual environment abounds with curved features. Thus, the goal of understanding visual processing should include the processing of curved features. Using functional magnetic resonance imaging in behaving monkeys, we demonstrated a network of cortical areas selective for the processing of curved features. This network includes three distinct hierarchically organized regions within the ventral visual pathway: a posterior curvature-biased patch (PCP) located in the near-foveal representation of dorsal V4, a middle curvature-biased patch (MCP) located on the ventral lip of the posterior superior temporal sulcus (STS) in area TEO, and an anterior curvature-biased patch (ACP) located just below the STS in anterior area TE. Our results further indicate that the processing of curvature becomes increasingly complex from PCP to ACP. The proximity of the curvature-processing network to the well-known face-processing network suggests a possible functional link between them.

SUBMITTER: Yue X

PROVIDER: S-EPMC4143055 | biostudies-literature | 2014 Aug

REPOSITORIES: biostudies-literature

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Curvature-processing network in macaque visual cortex.

Yue Xiaomin X Pourladian Irene S IS Tootell Roger B H RB Ungerleider Leslie G LG

Proceedings of the National Academy of Sciences of the United States of America 20140804 33

Our visual environment abounds with curved features. Thus, the goal of understanding visual processing should include the processing of curved features. Using functional magnetic resonance imaging in behaving monkeys, we demonstrated a network of cortical areas selective for the processing of curved features. This network includes three distinct hierarchically organized regions within the ventral visual pathway: a posterior curvature-biased patch (PCP) located in the near-foveal representation o ...[more]

PMID: 25092328

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