Dynamics of target and distractor processing in visual search: Evidence from event-related brain potentials

Hilimire, Matthew R.; Mounts, Jeffrey R. W.; Parks, Nathan A.; Corballis, Paul M.

doi:10.1016/j.neulet.2011.03.064

Cited by 52 publications

(78 citation statements)

References 13 publications

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“…The SPCN results extend previous findings by showing that the SPCN is sensitive to competition. Several earlier studies have showed that only the target elicited an SPCN (Hilimire et al., ; Jannati et al., ; McDonald et al., ). Here, we show evidence that the lateral distractor also elicited an SPCN.…”

Section: Discussionmentioning

confidence: 97%

“…However, it is also possible that N2pc amplitude will not modulate with competition (Burra & Kerzel, ; Jannati et al., ). In addition, we hypothesized that only the distractor would elicit a Ptc component based on previous results (Hilimire et al., ). Moreover, we expected that Ptc amplitude would vary with the competition manipulation indicating increased distractor suppression with increased competition (Hilimire et al., , ).…”

Section: Methodsmentioning

confidence: 99%

“…It is also possible that targets could elicit a contralateral positivity after the N2pc (Jannati et al., ; Sawaki et al., ) indexing active termination of attention to the target. Finally, we hypothesized that only the target would elicit an SPCN component, which would reflect that only the target receives postselection processing including representation in VSTM (Hilimire et al., ; Jannati et al., ; McDonald et al., ). The SPCN may not be influenced by the competition manipulation (Jannati et al., ).…”

Section: Methodsmentioning

confidence: 99%

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Event‐related potentials reveal the effect of prior knowledge on competition for representation and attentional capture

Hilimire

Corballis

2013

Psychophysiology

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Objects compete for representation in our limited capacity visual system. We examined how this competition is influenced by top-down knowledge using event-related potentials. Competition was manipulated by presenting visual search arrays in which the target or distractor was the only color singleton compared to displays in which both singletons were presented. Experiments 1 and 2 manipulated whether the observer knew the color of the target in advance. Experiment 3 ruled out low-level sensory explanations. Results show that, under conditions of competition, the distractor does not elicit an N2pc when the target color is known. However, the N2pc elicited by the target is reduced in the presence of a distractor. These findings suggest that top-down knowledge can prevent the capture of attention by distracting information, but this prior knowledge does not eliminate the competitive influence of the distractor on the target.

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Section: Discussionmentioning

confidence: 97%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Event‐related potentials reveal the effect of prior knowledge on competition for representation and attentional capture

Hilimire

Corballis

2013

Psychophysiology

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“…The PTc peaks at about 290–370 ms after stimulus onset and is largest over the temporal scalp region contralateral to the lateralized distracter 17 . The small differences in latency and amplitude distribution between these two ERP modulations could be attributed to the salience of the distracter stimulus 15, 18 . Further to these components, the rejection positivity (RP) has been used to describe a component in auditory-based studies akin to the Pd and PTc – with a frontocentral distribution occurring at 200–250 ms post-stimulus 6, 7, 19 .…”

Section: Introductionmentioning

confidence: 96%

“…component) has been found using mainly visual search paradigms where the target differs from the distracters in one feature (e.g. shape 14 ; orientation 15 ; colour 16 ). It is thought to reflect the suppression of, and possibly the orientation to, irrelevant but potentially distracting lateralized stimulus 14–16 .…”

Section: Introductionmentioning

confidence: 99%

Neural correlates of distraction and conflict resolution for nonverbal auditory events

Stewart

Amitay

Alain

2017

Sci Rep

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In everyday situations auditory selective attention requires listeners to suppress task-irrelevant stimuli and to resolve conflicting information in order to make appropriate goal-directed decisions. Traditionally, these two processes (i.e. distractor suppression and conflict resolution) have been studied separately. In the present study we measured neuroelectric activity while participants performed a new paradigm in which both processes are quantified. In separate block of trials, participants indicate whether two sequential tones share the same pitch or location depending on the block’s instruction. For the distraction measure, a positive component peaking at ~250 ms was found – a distraction positivity. Brain electrical source analysis of this component suggests different generators when listeners attended to frequency and location, with the distraction by location more posterior than the distraction by frequency, providing support for the dual-pathway theory. For the conflict resolution measure, a negative frontocentral component (270–450 ms) was found, which showed similarities with that of prior studies on auditory and visual conflict resolution tasks. The timing and distribution are consistent with two distinct neural processes with suppression of task-irrelevant information occurring before conflict resolution. This new paradigm may prove useful in clinical populations to assess impairments in filtering out task-irrelevant information and/or resolving conflicting information.

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Using the Contralateral Delay Activity to Study Online Processing of Items Still Within View

Balaban

Luria

2019

Spatial Learning and Attention Guidance

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Dynamics of target and distractor processing in visual search: Evidence from event-related brain potentials

Cited by 52 publications

References 13 publications

Event‐related potentials reveal the effect of prior knowledge on competition for representation and attentional capture

Event‐related potentials reveal the effect of prior knowledge on competition for representation and attentional capture

Neural correlates of distraction and conflict resolution for nonverbal auditory events

Using the Contralateral Delay Activity to Study Online Processing of Items Still Within View

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