Functional subdomains within scene-selective cortex: parahippocampal place area, retrosplenial complex, and occipital place area

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buir.contributor.authorÇukur, Tolga
dc.citation.epage10273en_US
dc.citation.issueNumber40en_US
dc.citation.spage10257en_US
dc.citation.volumeNumber36en_US
dc.contributor.authorÇukur, Tolgaen_US
dc.contributor.authorHuth, A. G.en_US
dc.contributor.authorNishimoto, S.en_US
dc.contributor.authorGallant, J. L.en_US
dc.date.accessioned2018-04-12T10:49:45Z
dc.date.available2018-04-12T10:49:45Z
dc.date.issued2016en_US
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.departmentNational Magnetic Resonance Research Center (UMRAM)en_US
dc.departmentInterdisciplinary Program in Neuroscience (NEUROSCIENCE)en_US
dc.departmentAysel Sabuncu Brain Research Center (BAM)en_US
dc.description.abstractFunctional MRI studies suggest that at least three brain regions in human visual cortex-the parahippocampal place area (PPA), retrosplenial complex (RSC), and occipital place area (OPA; often called the transverse occipital sulcus)-represent large-scale information in natural scenes. Tuning of voxels within each region is often assumed to be functionally homogeneous. To test this assumption, we recorded blood oxygenation level-dependent responses during passive viewing of complex natural movies. We then used a voxelwise modeling framework to estimate voxelwise category tuning profiles within each scene-selective region. In all three regions, cluster analysis of the voxelwise tuning profiles reveals two functional subdomains that differ primarily in their responses to animals, man-made objects, social communication, and movement. Thus, the conventional functional definitions of the PPA, RSC, and OPA appear to be too coarse. One attractive hypothesis is that this consistent functional subdivision of scene-selective regions is a reflection of an underlying anatomical organization into two separate processing streams, one selectively biased toward static stimuli and one biased toward dynamic stimuli.en_US
dc.identifier.doi10.1523/JNEUROSCI.4033-14.2016en_US
dc.identifier.issn0270-6474
dc.identifier.urihttp://hdl.handle.net/11693/36709
dc.language.isoEnglishen_US
dc.publisherSociety for Neuroscienceen_US
dc.relation.isversionofhttp://dx.doi.org/10.1523/JNEUROSCI.4033-14.2016en_US
dc.source.titleJournal of Neuroscienceen_US
dc.subjectCategory representationen_US
dc.subjectfMRIen_US
dc.subjectOPAen_US
dc.subjectPPAen_US
dc.subjectRSCen_US
dc.subjectSceneen_US
dc.subjectSubdomainen_US
dc.subjectTuning profileen_US
dc.subjectVoxelwise modelen_US
dc.titleFunctional subdomains within scene-selective cortex: parahippocampal place area, retrosplenial complex, and occipital place areaen_US
dc.typeArticleen_US
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Department of Electrical and Electronics Engineering
Aysel Sabuncu Brain Research Center (BAM)
National Magnetic Resonance Research Center (UMRAM)