Population Receptive Field Shapes in Early Visual Cortex Are Nearly Circular
First published February 2, 2021.
| Autores: | , , |
|---|---|
| Tipo de recurso: | artículo |
| Fecha de publicación: | 2021 |
| País: | España |
| Institución: | Universidad del País Vasco |
| Repositorio: | Addi. Archivo Digital para la Docencia y la Investigación |
| OAI Identifier: | oai:addi.ehu.eus:10810/50828 |
| Acceso en línea: | http://hdl.handle.net/10810/50828 |
| Access Level: | acceso abierto |
| Palabra clave: | visual cortex population receptive field fMRI |
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Population Receptive Field Shapes in Early Visual Cortex Are Nearly CircularLerma-Usabiaga, GarikoitzWinawer, JonathanWandell, Brian A.visual cortexpopulation receptive fieldfMRIFirst published February 2, 2021.The visual field region where a stimulus evokes a neural response is called the receptive field (RF). Analytical tools combined with functional MRI (fMRI) can estimate the RF of the population of neurons within a voxel. Circular population RF (pRF) methods accurately specify the central position of the pRF and provide some information about the spatial extent (diameter) of the RF. A number of investigators developed methods to further estimate the shape of the pRF, for example, whether the shape is more circular or elliptical. There is a report that there are many pRFs with highly elliptical pRFs in early visual cortex (V1–V3; Silson et al., 2018). Large aspect ratios (.2) are difficult to reconcile with the spatial scale of orientation columns or visual field map properties in early visual cortex. We started to replicate the experiments and found that the software used in the publication does not accurately estimate RF shape: it produces elliptical fits to circular ground-truth data. We analyzed an independent data set with a different software package that was validated over a specific range of measurement conditions, to show that in early visual cortex the aspect ratios are ,2. Furthermore, current empirical and theoretical methods do not have enough precision to discriminate ellipses with aspect ratios of 1.5 from circles. Through simulation we identify methods for improving sensitivity that may estimate ellipses with smaller aspect ratios. The results we present are quantitatively consistent with prior assessments using other methodologies.This work was supported by the European Union’s Horizon 2020 Research and Innovation Program under the Marie Sklodowska-Curie Grant 795807 (to G.L.-U.) and by National Institutes of Health Grants EY027401, EY027964, and MH111417 (to J.W.). We thank E. Silson, C. Baker, and R. Reynolds. We also thank R. Reynolds for help with the AFNI softwareThe Journal of Neuroscience202120212021info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10810/50828reponame:Addi. Archivo Digital para la Docencia y la Investigacióninstname:Universidad del País VascoInglésinfo:eu-repo/grantAgreement/EC/H2020- MSCA-IF-2017-795807-ReCiModel/https://www.jneurosci.org/info:eu-repo/semantics/openAccessCopyright © 2021 the authorsoai:addi.ehu.eus:10810/508282026-06-18T09:23:17Z |
| dc.title.none.fl_str_mv |
Population Receptive Field Shapes in Early Visual Cortex Are Nearly Circular |
| title |
Population Receptive Field Shapes in Early Visual Cortex Are Nearly Circular |
| spellingShingle |
Population Receptive Field Shapes in Early Visual Cortex Are Nearly Circular Lerma-Usabiaga, Garikoitz visual cortex population receptive field fMRI |
| title_short |
Population Receptive Field Shapes in Early Visual Cortex Are Nearly Circular |
| title_full |
Population Receptive Field Shapes in Early Visual Cortex Are Nearly Circular |
| title_fullStr |
Population Receptive Field Shapes in Early Visual Cortex Are Nearly Circular |
| title_full_unstemmed |
Population Receptive Field Shapes in Early Visual Cortex Are Nearly Circular |
| title_sort |
Population Receptive Field Shapes in Early Visual Cortex Are Nearly Circular |
| dc.creator.none.fl_str_mv |
Lerma-Usabiaga, Garikoitz Winawer, Jonathan Wandell, Brian A. |
| author |
Lerma-Usabiaga, Garikoitz |
| author_facet |
Lerma-Usabiaga, Garikoitz Winawer, Jonathan Wandell, Brian A. |
| author_role |
author |
| author2 |
Winawer, Jonathan Wandell, Brian A. |
| author2_role |
author author |
| dc.subject.none.fl_str_mv |
visual cortex population receptive field fMRI |
| topic |
visual cortex population receptive field fMRI |
| description |
First published February 2, 2021. |
| publishDate |
2021 |
| dc.date.none.fl_str_mv |
2021 2021 2021 |
| dc.type.none.fl_str_mv |
info:eu-repo/semantics/article |
| format |
article |
| dc.identifier.none.fl_str_mv |
http://hdl.handle.net/10810/50828 |
| url |
http://hdl.handle.net/10810/50828 |
| dc.language.none.fl_str_mv |
Inglés |
| language_invalid_str_mv |
Inglés |
| dc.relation.none.fl_str_mv |
info:eu-repo/grantAgreement/EC/H2020- MSCA-IF-2017-795807-ReCiModel/ https://www.jneurosci.org/ |
| dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess Copyright © 2021 the authors |
| eu_rights_str_mv |
openAccess |
| rights_invalid_str_mv |
Copyright © 2021 the authors |
| dc.format.none.fl_str_mv |
application/pdf |
| dc.publisher.none.fl_str_mv |
The Journal of Neuroscience |
| publisher.none.fl_str_mv |
The Journal of Neuroscience |
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reponame:Addi. Archivo Digital para la Docencia y la Investigación instname:Universidad del País Vasco |
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Universidad del País Vasco |
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Addi. Archivo Digital para la Docencia y la Investigación |
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Addi. Archivo Digital para la Docencia y la Investigación |
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1869418438572638208 |
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15.300724 |