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Cited by 1,018Visual perception and processing mechanismsNeural and Behavioral Psychology StudiesVisual Attention and Saliency Detection

The N2pc component as an indicator of attentional selectivity

Eimer, Martin·1996·Electroencephalography and Clinical Neurophysiology
DOI 10.1016/0013-4694(96)95711-9
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Abstract

Event-related potentials (ERPs) were recorded during visual discrimination tasks in which stimulus arrays were presented that contained one lateral target and 3 (experiment 1) or one (experiments 2 and 3) non-targets. In experiments 1 and 2, targets differed from non-targets with respect to their form or their color. In experiment 3, word pairs were presented, with targets differing from non-targets with respect to their content. Subjects were required to respond to the identity of the target. In all experiments, an enhanced negativity was elicited at posterior electrodes contralateral to the location of the target. In the form discrimination tasks, this effect was present in the N1, N2, and P3 time intervals. In the color discrimination tasks, it was confined to the N2 time range. In the word discrimination task (experiment 3), this effect could only be observed over the left posterior hemisphere. It is argued that these lateralized negativities reflect the N2pc component that is assumed to indicate attentional filtering processes during visual search tasks. The present results extend this assumption by showing that this component is also elicited when targets are presented together with just one non-target item. It is argued that the N2pc may reflect the attentional selection of task-relevant stimuli.

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  • Subsequent to search display onset, the target-elicited N2pc component was smaller on high-incentive than on low-incentive trials.

    “Indeed, subsequent to the search display onset, the target-elicited N2pc component, thought to reflect attentional selection and originating in extrastriate visual areas such as V4 (e.g., Eimer, 1996), was smaller on high-incentive than on low-incentive trials.”

    From Selection history: How reward modulates selectivity of visual attention. (2018) · cites this paper as Eimer, 1996

  • The reduced N2pc on high-incentive trials is consistent with the typical finding of a reduced N2pc in easy versus hard search tasks.

    “This is consistent with the typical finding of a reduced N2pc in easy versus hard search tasks (Eimer, 1996; Luck & Hillyard, 1994).”

    From Selection history: How reward modulates selectivity of visual attention. (2018) · cites this paper as Eimer, 1996

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Authors
Eimer, M.
Venue
Electroencephalography and Clinical Neurophysiology
Publisher
Elsevier BV
Published
1996-09
Volume
99
Issue
3
Pages
225-234
ISSN
0013-4694 (ISSN-L)
DOI
10.1016/0013-4694(96)95711-9
OpenAlex
W2059447853
Cited by
1,018
References
13
Citations by year
2026: 25 · 2025: 53 · 2024: 52 · 2023: 50 · 2022: 41 · 2021: 52 · 2020: 63 · 2019: 46 · 2018: 58 · 2017: 56 · 2016: 63 · 2015: 41 · 2014: 58 · 2013: 52 · 2012: 45
FWCI
1.15
Type
journal article
Language
en
Open access
closed
Licence
www.elsevier.com/tdm/userlicense/1.0/ (tdm)
Locations
  • Electroencephalography and Clinical Neurophysiology (publishedVersion)
  • PubMed (publishedVersion)
  • BIROn (Birkbeck, University of London) (submittedVersion)
Funders
Deutsche Forschungsgemeinschaft
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Visual perception and processing mechanisms
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
  • Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Visual Attention and Saliency Detection
Keywords
selective attention, visual discrimination, attentional filtering, visual search, event-related potentials, N1, N2, P3, hemispheric lateralization, form discrimination, color discrimination, word discrimination, posterior negativity
MeSH terms
Adult, Attention, Color Perception, Discrimination, Psychological, Evoked Potentials, Female, Form Perception, Humans, Functional Laterality, Male, Reading, Visual Perception

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