A Real-World Size Organization of Object Responses in Occipitotemporal Cortex
Name
Konkle-2012-A Real-World Size Or.pdf
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2.65 MB
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Checksum (MD5)
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Author(s)
Konkle, Talia A.
Oliva, Aude
Date Issued
June 2012
Journal
Neuron
Publisher
Elsevier
Citation
Konkle, Talia, and Aude Oliva. “A Real-World Size Organization of Object Responses in Occipitotemporal Cortex.” Neuron 74, no. 6 (June 2012): 1114–1124. © 2012 Elsevier Inc.
Version
Final published version
Abstract
While there are selective regions of occipitotemporal cortex that respond to faces, letters, and bodies, the large-scale neural organization of most object categories remains unknown. Here, we find that object representations can be differentiated along the ventral temporal cortex by their real-world size. In a functional neuroimaging experiment, observers were shown pictures of big and small real-world objects (e.g., table, bathtub; paperclip, cup), presented at the same retinal size. We observed a consistent medial-to-lateral organization of big and small object preferences in the ventral temporal cortex, mirrored along the lateral surface. Regions in the lateral-occipital, inferotemporal, and parahippocampal cortices showed strong peaks of differential real-world size selectivity and maintained these preferences over changes in retinal size and in mental imagery. These data demonstrate that the real-world size of objects can provide insight into the spatial topography of object representation.
MIT Department
Massachusetts Institute of Technology. Computer Science and Artificial Intelligence Laboratory
Massachusetts Institute of Technology. Department of Brain and Cognitive Sciences
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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/10.1016/j.neuron.2012.04.036
