Scene-selective coding by single neurons in the human parahippocampal cortex
Name
Mormann-2017-Scene-selective coding by single.pdf
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1.03 MB
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Checksum (MD5)
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Author(s)
Mormann, Florian
Cerf, Moran
Ison, Matias J.
Kraskov, Alexander
Tran, Michelle
Knieling, Simeon
Quian Quiroga, Rodrigo
Koch, Christof
Fried, Itzhak
Kornblith, Simon John
Date Issued
January 2017
Journal
Proceedings of the National Academy of Sciences
Publisher
National Academy of Sciences (U.S.)
Citation
Mormann, Florian et al. “Scene-Selective Coding by Single Neurons in the Human Parahippocampal Cortex.” Proceedings of the National Academy of Sciences 114, 5 (January 2017): 1153–1158 © National Academy of Sciences
Version
Final published version
Abstract
Imaging, electrophysiological, and lesion studies have shown a relationship between the parahippocampal cortex (PHC) and the processing of spatial scenes. Our present knowledge of PHC, however, is restricted to the macroscopic properties and dynamics of bulk tissue; the behavior and selectivity of single parahippocampal neurons remains largely unknown. In this study, we analyzed responses from 630 parahippocampal neurons in 24 neurosurgical patients during visual stimulus presentation. We found a spatially clustered subpopulation of scene-selective units with an associated event-related field potential. These units form a population code that is more distributed for scenes than for other stimulus categories, and less sparse than elsewhere in the medial temporal lobe. Our electrophysiological findings provide insight into how individual units give rise to the population response observed with functional imaging in the parahippocampal place area.
MIT Department
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/10.1073/pnas.1608159113
