The Neural Correlates of Object Familiarity and Domain Specificity in the Human Visual Cortex: An fMRI Study.
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| Title: | The Neural Correlates of Object Familiarity and Domain Specificity in the Human Visual Cortex: An fMRI Study. |
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| Authors: | Zannino, Gian Daniele1 (AUTHOR) g.zannino@hsantalucia.it, Barban, Francesco1 (AUTHOR), Macaluso, Emiliano1 (AUTHOR), Caltagirone, Carlo1,2 (AUTHOR), Carlesimo, Giovanni A.1,2 (AUTHOR) |
| Source: | Journal of Cognitive Neuroscience. Oct2011, Vol. 23 Issue 10, p2878-2891. 14p. |
| Subjects: | Object permanence (Psychology), Visual cortex, Domain specificity, Statistical correlation, Magnetic resonance imaging of the brain, Visual perception, Three-dimensional display systems |
| Abstract: | Ventral occipito-temporal cortex is known to play a major role in visual object recognition. Still unknown is whether object familiarity and semantic domain are critical factors in its functional organization. Most models assume a functional locus where exemplars of familiar categories are represented: the structural description system. On the assumption that familiarity should modulate the effect of visual noise on form recognition, we attempted to individualize the structural description system by scanning healthy subjects while they looked at familiar (living and nonliving things) and novel 3-D objects, either with increasing or decreasing visual noise. Familiarity modulated the visual noise effect (particularly when familiar items were living things), revealing a substrate for the structural description system in right occipito-temporal cortex. These regions also responded preferentially to living as compared to nonliving items. Overall, these results suggest that living items are particularly reliant on the structural description system. [ABSTRACT FROM AUTHOR] |
| Copyright of Journal of Cognitive Neuroscience is the property of MIT Press and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
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| Header | DbId: egs DbLabel: Engineering Source An: 65147966 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: The Neural Correlates of Object Familiarity and Domain Specificity in the Human Visual Cortex: An fMRI Study. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Zannino%2C+Gian+Daniele%22">Zannino, Gian Daniele</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> g.zannino@hsantalucia.it</i><br /><searchLink fieldCode="AR" term="%22Barban%2C+Francesco%22">Barban, Francesco</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Macaluso%2C+Emiliano%22">Macaluso, Emiliano</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Caltagirone%2C+Carlo%22">Caltagirone, Carlo</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Carlesimo%2C+Giovanni+A%2E%22">Carlesimo, Giovanni A.</searchLink><relatesTo>1,2</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+Cognitive+Neuroscience%22">Journal of Cognitive Neuroscience</searchLink>. Oct2011, Vol. 23 Issue 10, p2878-2891. 14p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Object+permanence+%28Psychology%29%22">Object permanence (Psychology)</searchLink><br /><searchLink fieldCode="DE" term="%22Visual+cortex%22">Visual cortex</searchLink><br /><searchLink fieldCode="DE" term="%22Domain+specificity%22">Domain specificity</searchLink><br /><searchLink fieldCode="DE" term="%22Statistical+correlation%22">Statistical correlation</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetic+resonance+imaging+of+the+brain%22">Magnetic resonance imaging of the brain</searchLink><br /><searchLink fieldCode="DE" term="%22Visual+perception%22">Visual perception</searchLink><br /><searchLink fieldCode="DE" term="%22Three-dimensional+display+systems%22">Three-dimensional display systems</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Ventral occipito-temporal cortex is known to play a major role in visual object recognition. Still unknown is whether object familiarity and semantic domain are critical factors in its functional organization. Most models assume a functional locus where exemplars of familiar categories are represented: the structural description system. On the assumption that familiarity should modulate the effect of visual noise on form recognition, we attempted to individualize the structural description system by scanning healthy subjects while they looked at familiar (living and nonliving things) and novel 3-D objects, either with increasing or decreasing visual noise. Familiarity modulated the visual noise effect (particularly when familiar items were living things), revealing a substrate for the structural description system in right occipito-temporal cortex. These regions also responded preferentially to living as compared to nonliving items. Overall, these results suggest that living items are particularly reliant on the structural description system. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of Cognitive Neuroscience is the property of MIT Press and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1162/jocn.2011.21629 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 14 StartPage: 2878 Subjects: – SubjectFull: Object permanence (Psychology) Type: general – SubjectFull: Visual cortex Type: general – SubjectFull: Domain specificity Type: general – SubjectFull: Statistical correlation Type: general – SubjectFull: Magnetic resonance imaging of the brain Type: general – SubjectFull: Visual perception Type: general – SubjectFull: Three-dimensional display systems Type: general Titles: – TitleFull: The Neural Correlates of Object Familiarity and Domain Specificity in the Human Visual Cortex: An fMRI Study. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Zannino, Gian Daniele – PersonEntity: Name: NameFull: Barban, Francesco – PersonEntity: Name: NameFull: Macaluso, Emiliano – PersonEntity: Name: NameFull: Caltagirone, Carlo – PersonEntity: Name: NameFull: Carlesimo, Giovanni A. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 10 Text: Oct2011 Type: published Y: 2011 Identifiers: – Type: issn-print Value: 0898929X Numbering: – Type: volume Value: 23 – Type: issue Value: 10 Titles: – TitleFull: Journal of Cognitive Neuroscience Type: main |
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