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The PD Reflects Selection of Nontarget Locations, Not Distractor Suppression.

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Title: The PD Reflects Selection of Nontarget Locations, Not Distractor Suppression.
Authors: Kerzel, Dirk (AUTHOR), Huynh Cong, Stanislas (AUTHOR)
Source: Journal of Cognitive Neuroscience. Sep2023, Vol. 35 Issue 9, p1478-1492. 15p. 1 Color Photograph, 1 Diagram, 1 Graph.
Subjects: Visual perception, Evoked potentials (Electrophysiology), Stimulus & response (Psychology)
Abstract: In visual search tasks, negative features provide information about stimuli that can be excluded from search. It has been shown that these negative features help participants to locate the target, possibly by attentional suppression of stimuli sharing the negative feature. Attentional suppression is assumed to be reflected in an event-related potential, the PD component. To provide a further test of these assumptions, we presented the color of the distractor at the start of a trial and asked participants to find the other colored stimulus in the subsequent search display. Consistent with attentional suppression, we observed a PD to a lateral distractor shown with a vertical target. However, the PD occurred in this condition only when target and distractor could also be on opposite sides of fixation. The effect of trial context on the PD suggests that the PD reflects a search strategy whereby participants select stimuli opposite to the distractor when trials with opposite placements occur during the experiment. Therefore, the PD to the distractor may in fact be an N2pc to the opposite stimulus, indicating that the distractor is not suppressed, but avoided by redirecting attentional selection to the opposite side. [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: Psychology and Behavioral Sciences Collection
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  Data: <searchLink fieldCode="AR" term="%22Kerzel%2C+Dirk%22">Kerzel, Dirk</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Huynh+Cong%2C+Stanislas%22">Huynh Cong, Stanislas</searchLink> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Cognitive+Neuroscience%22">Journal of Cognitive Neuroscience</searchLink>. Sep2023, Vol. 35 Issue 9, p1478-1492. 15p. 1 Color Photograph, 1 Diagram, 1 Graph.
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  Data: <searchLink fieldCode="DE" term="%22Visual+perception%22">Visual perception</searchLink><br /><searchLink fieldCode="DE" term="%22Evoked+potentials+%28Electrophysiology%29%22">Evoked potentials (Electrophysiology)</searchLink><br /><searchLink fieldCode="DE" term="%22Stimulus+%26+response+%28Psychology%29%22">Stimulus & response (Psychology)</searchLink>
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  Data: In visual search tasks, negative features provide information about stimuli that can be excluded from search. It has been shown that these negative features help participants to locate the target, possibly by attentional suppression of stimuli sharing the negative feature. Attentional suppression is assumed to be reflected in an event-related potential, the PD component. To provide a further test of these assumptions, we presented the color of the distractor at the start of a trial and asked participants to find the other colored stimulus in the subsequent search display. Consistent with attentional suppression, we observed a PD to a lateral distractor shown with a vertical target. However, the PD occurred in this condition only when target and distractor could also be on opposite sides of fixation. The effect of trial context on the PD suggests that the PD reflects a search strategy whereby participants select stimuli opposite to the distractor when trials with opposite placements occur during the experiment. Therefore, the PD to the distractor may in fact be an N2pc to the opposite stimulus, indicating that the distractor is not suppressed, but avoided by redirecting attentional selection to the opposite side. [ABSTRACT FROM AUTHOR]
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  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.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=pbh&AN=169712302
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        Value: 10.1162/jocn_a_02023
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      – Code: eng
        Text: English
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        PageCount: 15
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    Subjects:
      – SubjectFull: Visual perception
        Type: general
      – SubjectFull: Evoked potentials (Electrophysiology)
        Type: general
      – SubjectFull: Stimulus & response (Psychology)
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      – TitleFull: The PD Reflects Selection of Nontarget Locations, Not Distractor Suppression.
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            NameFull: Huynh Cong, Stanislas
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              M: 09
              Text: Sep2023
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              Y: 2023
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            – TitleFull: Journal of Cognitive Neuroscience
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