Functional subdomains within scene-selective cortex: parahippocampal place area, retrosplenial complex, and occipital place area
buir.contributor.author | Çukur, Tolga | |
dc.citation.epage | 10273 | en_US |
dc.citation.issueNumber | 40 | en_US |
dc.citation.spage | 10257 | en_US |
dc.citation.volumeNumber | 36 | en_US |
dc.contributor.author | Çukur, Tolga | en_US |
dc.contributor.author | Huth, A. G. | en_US |
dc.contributor.author | Nishimoto, S. | en_US |
dc.contributor.author | Gallant, J. L. | en_US |
dc.date.accessioned | 2018-04-12T10:49:45Z | |
dc.date.available | 2018-04-12T10:49:45Z | |
dc.date.issued | 2016 | en_US |
dc.department | Department of Electrical and Electronics Engineering | en_US |
dc.department | National Magnetic Resonance Research Center (UMRAM) | en_US |
dc.department | Interdisciplinary Program in Neuroscience (NEUROSCIENCE) | en_US |
dc.department | Aysel Sabuncu Brain Research Center (BAM) | en_US |
dc.description.abstract | Functional 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.description.provenance | Made available in DSpace on 2018-04-12T10:49:45Z (GMT). No. of bitstreams: 1 bilkent-research-paper.pdf: 179475 bytes, checksum: ea0bedeb05ac9ccfb983c327e155f0c2 (MD5) Previous issue date: 2016 | en |
dc.identifier.doi | 10.1523/JNEUROSCI.4033-14.2016 | en_US |
dc.identifier.issn | 0270-6474 | |
dc.identifier.uri | http://hdl.handle.net/11693/36709 | |
dc.language.iso | English | en_US |
dc.publisher | Society for Neuroscience | en_US |
dc.relation.isversionof | http://dx.doi.org/10.1523/JNEUROSCI.4033-14.2016 | en_US |
dc.source.title | Journal of Neuroscience | en_US |
dc.subject | Category representation | en_US |
dc.subject | fMRI | en_US |
dc.subject | OPA | en_US |
dc.subject | PPA | en_US |
dc.subject | RSC | en_US |
dc.subject | Scene | en_US |
dc.subject | Subdomain | en_US |
dc.subject | Tuning profile | en_US |
dc.subject | Voxelwise model | en_US |
dc.title | Functional subdomains within scene-selective cortex: parahippocampal place area, retrosplenial complex, and occipital place area | en_US |
dc.type | Article | en_US |
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