Bounded contribution of human early visual cortex to the topographic anisotropy in spatial extent perception
Abstract To interact successfully with objects, it is crucial to accurately perceive their spatial extent, an enclosed region they occupy in space. Although the topographic representation of space in the early visual cortex (EVC) has been favored as a neural correlate of spatial extent perception, i...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2024-02-01
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| Series: | Communications Biology |
| Online Access: | https://doi.org/10.1038/s42003-024-05846-x |
| _version_ | 1797273572107878400 |
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| author | Juhyoung Ryu Sang-Hun Lee |
| author_facet | Juhyoung Ryu Sang-Hun Lee |
| author_sort | Juhyoung Ryu |
| collection | DOAJ |
| description | Abstract To interact successfully with objects, it is crucial to accurately perceive their spatial extent, an enclosed region they occupy in space. Although the topographic representation of space in the early visual cortex (EVC) has been favored as a neural correlate of spatial extent perception, its exact nature and contribution to perception remain unclear. Here, we inspect the topographic representations of human individuals’ EVC and perception in terms of how much their anisotropy is influenced by the orientation (co-axiality) and radial position (radiality) of stimuli. We report that while the anisotropy is influenced by both factors, its direction is primarily determined by radiality in EVC but by co-axiality in perception. Despite this mismatch, the individual differences in both radial and co-axial anisotropy are substantially shared between EVC and perception. Our findings suggest that spatial extent perception builds on EVC’s spatial representation but requires an additional mechanism to transform its topographic bias. |
| first_indexed | 2024-03-07T14:46:18Z |
| format | Article |
| id | doaj.art-0739623953ba468eb9352ef5f7c88b15 |
| institution | Directory Open Access Journal |
| issn | 2399-3642 |
| language | English |
| last_indexed | 2024-03-07T14:46:18Z |
| publishDate | 2024-02-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Communications Biology |
| spelling | doaj.art-0739623953ba468eb9352ef5f7c88b152024-03-05T19:59:02ZengNature PortfolioCommunications Biology2399-36422024-02-017111510.1038/s42003-024-05846-xBounded contribution of human early visual cortex to the topographic anisotropy in spatial extent perceptionJuhyoung Ryu0Sang-Hun Lee1Department of Brain and Cognitive Sciences, Seoul National UniversityDepartment of Brain and Cognitive Sciences, Seoul National UniversityAbstract To interact successfully with objects, it is crucial to accurately perceive their spatial extent, an enclosed region they occupy in space. Although the topographic representation of space in the early visual cortex (EVC) has been favored as a neural correlate of spatial extent perception, its exact nature and contribution to perception remain unclear. Here, we inspect the topographic representations of human individuals’ EVC and perception in terms of how much their anisotropy is influenced by the orientation (co-axiality) and radial position (radiality) of stimuli. We report that while the anisotropy is influenced by both factors, its direction is primarily determined by radiality in EVC but by co-axiality in perception. Despite this mismatch, the individual differences in both radial and co-axial anisotropy are substantially shared between EVC and perception. Our findings suggest that spatial extent perception builds on EVC’s spatial representation but requires an additional mechanism to transform its topographic bias.https://doi.org/10.1038/s42003-024-05846-x |
| spellingShingle | Juhyoung Ryu Sang-Hun Lee Bounded contribution of human early visual cortex to the topographic anisotropy in spatial extent perception Communications Biology |
| title | Bounded contribution of human early visual cortex to the topographic anisotropy in spatial extent perception |
| title_full | Bounded contribution of human early visual cortex to the topographic anisotropy in spatial extent perception |
| title_fullStr | Bounded contribution of human early visual cortex to the topographic anisotropy in spatial extent perception |
| title_full_unstemmed | Bounded contribution of human early visual cortex to the topographic anisotropy in spatial extent perception |
| title_short | Bounded contribution of human early visual cortex to the topographic anisotropy in spatial extent perception |
| title_sort | bounded contribution of human early visual cortex to the topographic anisotropy in spatial extent perception |
| url | https://doi.org/10.1038/s42003-024-05846-x |
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