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The N2pc component in ERP and the lateralization effect of language on color perception
Neuroscience Letters, 2009 This study examined the electrophysiological bases of the effect of language on color perception. In a visual search task, a target was presented to the left or right visual field. The target color was either from the same category as a set of distractors (within-category condition) or from a different category (between-category condition).
Qiang Liu, Jennifer L Campos, Ye Zhang
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Eye movements are not mandatorily preceded by the N2pc component
Psychophysiology, 2021AbstractResearchers typically distinguish between two mechanisms of attentional selection in vision: overt and covert attention. A commonplace assumption is that overt eye movements are automatically preceded by shifts of covert attention during visual search.
Travis N Talcott, Nicholas Gaspelin
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Reorienting of spatial attention in gaze cuing is reflected in N2pc
Social Neuroscience, 2011Research has shown that gaze cuing of attention is reflected in the modulation of P1 and N1 components of ERPs time-locked to target onset. Studies focusing on cue-locked analyses have produced mixed results. The present study examined ERP reflections of gaze cuing in further detail by recording electric brain activity from the scalp of participants ...
Giovanni Galfano +2 more
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Dissociation of the N2pc and sustained posterior contralateral negativity in a choice response task
Brain Research, 2008The N2pc, a greater negativity at posterior electrodes on the side contralateral to an attended visual stimulus, usually between 180 and 280 ms, is thought to reflect the moment-to-moment deployment of visual-spatial attention. In tasks that require the retention of information in visual short-term memory, there is also a sustained posterior ...
Pierre Jolicœur +2 more
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N2pc reflects two modes for coding the number of visual targets
Psychophysiology, 2018 AbstractHumans share with a variety of animal species the spontaneous ability to detect the numerical correspondence between limited quantities of visual objects and discrete auditory events. Here, we explored how such mental representation is generated in the visual modality by monitoring a parieto‐occipital ERP component, N2pc, whose amplitude ...
Silvia Benavides-Varela +8 more
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Effects of eccentricity on the attention‐related N2pc component of the event‐related potential waveform [PDF]
Psychophysiology, 2020 The N2pc ERP component has been widely used as a measure of lateralized visual attention. It is characterized by a negativity contralateral to the attended location or target, and it is thought to reflect contralaterally enhanced processing of attended ...
Orestis Papaioannou, Steven J Luck
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Effect of cue–target interval on the N2pc
NeuroReport, 2006The N2pc component of the event-related potential occurs when participants must select and process a lateralized visual target, often in the presence of one or more distractors. The goal of this research was to determine whether the N2pc reflects unique processing related to the treatment of the target or whether it reflects processing related to the ...
Nicolas, Robitaille, Pierre, Jolicoeur
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Stimulus intensity affects the latency but not the amplitude of the N2pc
NeuroReport, 2007The N2pc component of the event-related potential (ERP) is an index of visual-spatial attention. It is not clear whether the N2pc reflects pure top-down attentional activity or an interaction of top-down activity with bottom-up sensory activity. Here, we manipulated stimulus intensity of the items composing the target display. Although the amplitude of
Benoit, Brisson +2 more
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Reward expectation modulates N2pc for target selection: Electrophysiological evidence
Psychophysiology, 2021AbstractIn an electrophysiological experiment, we investigated the effect of reward expectation on the localized attentional interference effect using a cue‐target paradigm, while event‐related potentials (ERPs) were recorded. A cue indicating the reward condition of each trial (incentive vs.
Ping Wei, Liyan Ji
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Modelling the N2pc and Its Interaction with Value
2007Attention and emotion are closely interlinked and recent results have shown some of the neuro-physiological details of the effects of attention on emotion through the distractor devaluation (DD) effect. We develop a possible neural attention control architecture to explain the DD effect, and show by specific simulation how the N2pc (an early component ...
John G. Taylor +1 more
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