Object-based selection modulates top-down attentional shifts
A large body of evidence supports that visual attention – the cognitive process of selectively concentrating on a salient or task-relevant subset of visual information – often works on object-based representation. Recent studies have postulated two possible accounts for the object-specific attention...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2014-02-01
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| Series: | Frontiers in Human Neuroscience |
| Subjects: | |
| Online Access: | http://journal.frontiersin.org/Journal/10.3389/fnhum.2014.00090/full |
| _version_ | 1819103170056421376 |
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| author | Satoshi eNishida Tomohiro eShibata Tomohiro eShibata Kazushi eIkeda |
| author_facet | Satoshi eNishida Tomohiro eShibata Tomohiro eShibata Kazushi eIkeda |
| author_sort | Satoshi eNishida |
| collection | DOAJ |
| description | A large body of evidence supports that visual attention – the cognitive process of selectively concentrating on a salient or task-relevant subset of visual information – often works on object-based representation. Recent studies have postulated two possible accounts for the object-specific attentional advantage: attentional spreading and attentional prioritization, each of which modulates a bottom-up signal for sensory processing and a top-down signal for attentional allocation, respectively. It is still unclear which account can explain the object-specific attentional advantage. To address this issue, we examined the influence of object-specific advantage on two types of visual search: parallel search, invoked when a bottom-up signal is fully available at a target location, and serial search, invoked when a bottom-up signal is not enough to guide target selection and a top-down control for shifting of focused attention is required. Our results revealed that the object-specific advantage is given to the serial search but not to the parallel search, suggesting that object-based attention facilitates stimulus processing by affecting the priority of attentional shifts rather than by enhancing sensory signals. Thus, our findings support the notion that the object-specific attentional advantage can be explained by attentional prioritization but not attentional spreading. |
| first_indexed | 2024-12-22T01:46:12Z |
| format | Article |
| id | doaj.art-71c84ac13db64c67942e8e72d12818df |
| institution | Directory Open Access Journal |
| issn | 1662-5161 |
| language | English |
| last_indexed | 2024-12-22T01:46:12Z |
| publishDate | 2014-02-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Human Neuroscience |
| spelling | doaj.art-71c84ac13db64c67942e8e72d12818df2022-12-21T18:43:03ZengFrontiers Media S.A.Frontiers in Human Neuroscience1662-51612014-02-01810.3389/fnhum.2014.0009072416Object-based selection modulates top-down attentional shiftsSatoshi eNishida0Tomohiro eShibata1Tomohiro eShibata2Kazushi eIkeda3Kyoto UniversityNara Institute of Science and TechnologyKyushu Institute of TechnologyNara Institute of Science and TechnologyA large body of evidence supports that visual attention – the cognitive process of selectively concentrating on a salient or task-relevant subset of visual information – often works on object-based representation. Recent studies have postulated two possible accounts for the object-specific attentional advantage: attentional spreading and attentional prioritization, each of which modulates a bottom-up signal for sensory processing and a top-down signal for attentional allocation, respectively. It is still unclear which account can explain the object-specific attentional advantage. To address this issue, we examined the influence of object-specific advantage on two types of visual search: parallel search, invoked when a bottom-up signal is fully available at a target location, and serial search, invoked when a bottom-up signal is not enough to guide target selection and a top-down control for shifting of focused attention is required. Our results revealed that the object-specific advantage is given to the serial search but not to the parallel search, suggesting that object-based attention facilitates stimulus processing by affecting the priority of attentional shifts rather than by enhancing sensory signals. Thus, our findings support the notion that the object-specific attentional advantage can be explained by attentional prioritization but not attentional spreading.http://journal.frontiersin.org/Journal/10.3389/fnhum.2014.00090/fullPsychophysicsvisual attentionvisual searchobject-based attentionattentional prioritizationattentional spreading |
| spellingShingle | Satoshi eNishida Tomohiro eShibata Tomohiro eShibata Kazushi eIkeda Object-based selection modulates top-down attentional shifts Frontiers in Human Neuroscience Psychophysics visual attention visual search object-based attention attentional prioritization attentional spreading |
| title | Object-based selection modulates top-down attentional shifts |
| title_full | Object-based selection modulates top-down attentional shifts |
| title_fullStr | Object-based selection modulates top-down attentional shifts |
| title_full_unstemmed | Object-based selection modulates top-down attentional shifts |
| title_short | Object-based selection modulates top-down attentional shifts |
| title_sort | object based selection modulates top down attentional shifts |
| topic | Psychophysics visual attention visual search object-based attention attentional prioritization attentional spreading |
| url | http://journal.frontiersin.org/Journal/10.3389/fnhum.2014.00090/full |
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