Mutual interplay between perceptual organization and attention: a neuropsychological perspective
An efficient representation of the environment requires both the selection of a fraction of the information that reaches our senses and the organization of this information into coherent and meaningful elements. Here we discuss the dynamic interplay between selective attention and perceptual organiz...
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| Format: | Book section |
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Oxford University Press
2013
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| _version_ | 1826261511039877120 |
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| author | Gillebert, C Humphreys, G |
| author2 | Wagemans, J |
| author_facet | Wagemans, J Gillebert, C Humphreys, G |
| author_sort | Gillebert, C |
| collection | OXFORD |
| description | An efficient representation of the environment requires both the selection of a fraction of the information that reaches our senses and the organization of this information into coherent and meaningful elements. Here we discuss the dynamic interplay between selective attention and perceptual organization, important processes that allow us to perceive a seamless, integrated world. Based on evidence from behavioral and neuroimaging studies with normal observers and neuropsychological patients, we examine whether: (i) perceptual grouping constrains visual attention, determining which objects will be selected and be candidates for explicit report; (ii) visual attention modulates perceptual grouping, determining how elements are grouped to form meaningful wholes. The data suggest that, whilst not being necessary for at least some forms of perceptual grouping, visual attention can nevertheless modulate grouping. We conclude that selection is dynamically set by bottom-up stimulus factors, top-down knowledge and the allocation of attention to space and within grouped regions of objects. |
| first_indexed | 2024-03-06T19:22:35Z |
| format | Book section |
| id | oxford-uuid:1a99293a-3e02-4b15-8fe8-935987591de6 |
| institution | University of Oxford |
| last_indexed | 2024-03-06T19:22:35Z |
| publishDate | 2013 |
| publisher | Oxford University Press |
| record_format | dspace |
| spelling | oxford-uuid:1a99293a-3e02-4b15-8fe8-935987591de62022-03-26T10:55:51ZMutual interplay between perceptual organization and attention: a neuropsychological perspectiveBook sectionhttp://purl.org/coar/resource_type/c_3248uuid:1a99293a-3e02-4b15-8fe8-935987591de6Symplectic Elements at OxfordOxford University Press2013Gillebert, CHumphreys, GWagemans, JAn efficient representation of the environment requires both the selection of a fraction of the information that reaches our senses and the organization of this information into coherent and meaningful elements. Here we discuss the dynamic interplay between selective attention and perceptual organization, important processes that allow us to perceive a seamless, integrated world. Based on evidence from behavioral and neuroimaging studies with normal observers and neuropsychological patients, we examine whether: (i) perceptual grouping constrains visual attention, determining which objects will be selected and be candidates for explicit report; (ii) visual attention modulates perceptual grouping, determining how elements are grouped to form meaningful wholes. The data suggest that, whilst not being necessary for at least some forms of perceptual grouping, visual attention can nevertheless modulate grouping. We conclude that selection is dynamically set by bottom-up stimulus factors, top-down knowledge and the allocation of attention to space and within grouped regions of objects. |
| spellingShingle | Gillebert, C Humphreys, G Mutual interplay between perceptual organization and attention: a neuropsychological perspective |
| title | Mutual interplay between perceptual organization and attention: a neuropsychological perspective |
| title_full | Mutual interplay between perceptual organization and attention: a neuropsychological perspective |
| title_fullStr | Mutual interplay between perceptual organization and attention: a neuropsychological perspective |
| title_full_unstemmed | Mutual interplay between perceptual organization and attention: a neuropsychological perspective |
| title_short | Mutual interplay between perceptual organization and attention: a neuropsychological perspective |
| title_sort | mutual interplay between perceptual organization and attention a neuropsychological perspective |
| work_keys_str_mv | AT gillebertc mutualinterplaybetweenperceptualorganizationandattentionaneuropsychologicalperspective AT humphreysg mutualinterplaybetweenperceptualorganizationandattentionaneuropsychologicalperspective |