Results 161 to 170 of about 2,185 (183)
Some of the next articles are maybe not open access.
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
openaire +2 more sources
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
openaire +2 more sources
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
openaire +1 more source
The N2pc component as an indicator of attentional selectivity
Electroencephalography and Clinical Neurophysiology, 1996Event-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.
openaire +2 more sources
Parsing attentional processes involved in the elicitation of the N2pc component
NeuroReport, 2019The elicitation of the N2pc event-related potential component is commonly thought to be related to attentional processes involved in the selection of lateralized target information. However, it has recently been suggested that this component may reflect the localization of visual information in preparation of selection processes.
Anthony P, Drew, Aaron T, Karst
openaire +2 more sources
The N2pc as an Electrophysiological Correlate of Attention in Change Blindness
Journal of Psychophysiology, 2009Changes between two successively presented pictures are hard to detect when their presentation is interrupted by a blank (change blindness). This task is well established for investigating the neural correlates of visual awareness. It allows the comparison of electrophysiological activity evoked by physically identical trials in which the change was ...
Andrea Schankin +2 more
openaire +1 more source
Fundamental properties of the N2pc as an index of spatial attention: Effects of masking.
Canadian Journal of Experimental Psychology / Revue canadienne de psychologie expérimentale, 2006Masking is an important tool in many paradigms used to study the cognitive architecture. The N2pc is an electrophysiological event-related potential (ERP) that has been used as a tool to study the deployment of visual spatial attention. The aim of this paper was to study the effects of masking on the N2pc.
Nicolas, Robitaille, Pierre, Jolicoeur
openaire +2 more sources
N2pc and PD to salient items with different relevance to the task
2022In our previous study (https://osf.io/cwrua), we wanted to know how attention to a salient item changes based on its relevance to our task, and how it affects our performance depending on its relevance. We conducted an experiment in which we manipulated the proportion of salient distractors and target (i.e., a red letter between all white letters), in ...
Manini, Greta +4 more
openaire +1 more source
N2pc reflects two modes for coding the number of visual targets
Psychophysiology, 2018AbstractHumans 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
openaire +3 more sources