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Attentional capture during visual search is attenuated by target predictability: Evidence from the N2pc, Pd, and topographic segmentation.

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Title: Attentional capture during visual search is attenuated by target predictability: Evidence from the N2pc, Pd, and topographic segmentation.
Authors: Burra, Nicolas, Kerzel, Dirk
Source: Psychophysiology. May2013, Vol. 50 Issue 5, p422-430. 9p. 3 Diagrams, 1 Chart, 3 Graphs.
Subjects: Surface topography, Image segmentation, Amplitude modulation, Electronic modulation, Single-sideband radio
Abstract: Attentional capture by salient distractors has been confirmed by the occurrence of an N2pc to the salient distractor. To clarify some failures to replicate this finding, we varied target predictability to induce different search modes. In the unpredictable target condition, the target shape varied randomly from trial to trial, favoring singleton detection mode. In the predictable target condition, the target shape remained the same in a block of trials, favoring feature search mode. With unpredictable targets, we observed an N2pc toward the salient color distractor, confirming attentional capture in singleton search mode. With predictable targets, there was no N2pc to the salient distractor, but a distractor positivity ( Pd), suggesting distractor suppression. Also, differences emerged in the topographic segmentation of N2pc and Pd. Further, the amplitude of the N2pc toward the target was larger with predictable than with unpredictable targets. [ABSTRACT FROM AUTHOR]
Copyright of Psychophysiology is the property of Wiley-Blackwell 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: Psychology and Behavioral Sciences Collection
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  Label: Title
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  Data: Attentional capture during visual search is attenuated by target predictability: Evidence from the N2pc, Pd, and topographic segmentation.
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  Data: <searchLink fieldCode="AR" term="%22Burra%2C+Nicolas%22">Burra, Nicolas</searchLink><br /><searchLink fieldCode="AR" term="%22Kerzel%2C+Dirk%22">Kerzel, Dirk</searchLink>
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  Data: <searchLink fieldCode="JN" term="%22Psychophysiology%22">Psychophysiology</searchLink>. May2013, Vol. 50 Issue 5, p422-430. 9p. 3 Diagrams, 1 Chart, 3 Graphs.
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  Data: <searchLink fieldCode="DE" term="%22Surface+topography%22">Surface topography</searchLink><br /><searchLink fieldCode="DE" term="%22Image+segmentation%22">Image segmentation</searchLink><br /><searchLink fieldCode="DE" term="%22Amplitude+modulation%22">Amplitude modulation</searchLink><br /><searchLink fieldCode="DE" term="%22Electronic+modulation%22">Electronic modulation</searchLink><br /><searchLink fieldCode="DE" term="%22Single-sideband+radio%22">Single-sideband radio</searchLink>
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  Data: Attentional capture by salient distractors has been confirmed by the occurrence of an N2pc to the salient distractor. To clarify some failures to replicate this finding, we varied target predictability to induce different search modes. In the unpredictable target condition, the target shape varied randomly from trial to trial, favoring singleton detection mode. In the predictable target condition, the target shape remained the same in a block of trials, favoring feature search mode. With unpredictable targets, we observed an N2pc toward the salient color distractor, confirming attentional capture in singleton search mode. With predictable targets, there was no N2pc to the salient distractor, but a distractor positivity ( Pd), suggesting distractor suppression. Also, differences emerged in the topographic segmentation of N2pc and Pd. Further, the amplitude of the N2pc toward the target was larger with predictable than with unpredictable targets. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Psychophysiology is the property of Wiley-Blackwell 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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        Value: 10.1111/psyp.12019
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      – Code: eng
        Text: English
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        PageCount: 9
        StartPage: 422
    Subjects:
      – SubjectFull: Surface topography
        Type: general
      – SubjectFull: Image segmentation
        Type: general
      – SubjectFull: Amplitude modulation
        Type: general
      – SubjectFull: Electronic modulation
        Type: general
      – SubjectFull: Single-sideband radio
        Type: general
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      – TitleFull: Attentional capture during visual search is attenuated by target predictability: Evidence from the N2pc, Pd, and topographic segmentation.
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              M: 05
              Text: May2013
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              Y: 2013
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              Value: 50
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            – TitleFull: Psychophysiology
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