The attentional window configures to object and surface boundaries

Vatterott, Daniel B.; Vecera, Shaun P.

doi:10.1080/13506285.2015.1054454

Cited by 15 publications

(19 citation statements)

References 33 publications

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“…Combined with our previous study (Huang et al, 2016), we propose that spatial relevance itself could modulate the strength of attentional capture. The modulation by spatial relevance might result from uneven distribution of spatial attention across spatially relevant and irrelevant locations, especially given that spatial attention could be selectively deployed to a specific subset of locations under certain tasks (Kerzel, Born, & Schönhammer, 2012;Muller, Malinowski, Gruber, & Hillyard, 2003;Vatterott & Vecera, 2015).…”

Section: Discussionmentioning

confidence: 99%

Attentional capture by a color singleton is stronger at spatially relevant than irrelevant locations: Evidence from an ERP study

Huang

Yang

et al. 2020

Psychophysiology

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Top‐down spatial attention can modulate contingent attentional capture, but the underlying mechanism is still not clear. Using variants of spatial cueing paradigms, our previous event‐related potential study showed that peripheral color singleton cues with task‐relevant features captured attention (indexed by cue‐elicited N2pc) even when the targets appeared at central locations, but the magnitude of attentional capture was smaller than when the targets appeared at same peripheral locations. One reasonable explanation is that the modulation effect is due to spatial relevance of cues. However, several other confounding factors might also explain the modulation effect, such as task difficulty, spread of attentional window, and inside/outside relation between cue and attentional window. In the present study, we rearranged the relative locations between cues and targets to control these factors and to further examine whether inequivalence of attentional capture across attended and unattended locations was a common phenomenon. In two experiments, color singleton cues elicited apparent N2pc components when participants were searching for targets possessing the same color, which replicated typical findings of contingent attentional capture. More importantly, the modulation effect of top‐down spatial attention on the cue‐elicited N2pc still existed even when the factors of task difficulty (Experiment 1), spread of attentional window (Experiment 1), or inside/outside relation between cue and attentional window (Experiment 2) were controlled. These results consistently demonstrate that attentional capture by a color singleton is stronger at spatially relevant locations than at spatially irrelevant locations, suggesting an important role of spatial relevance on contingent attentional capture.

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Section: Discussionmentioning

confidence: 99%

Attentional capture by a color singleton is stronger at spatially relevant than irrelevant locations: Evidence from an ERP study

Huang

Yang

et al. 2020

Psychophysiology

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“…FVFs are spatially constrained, and so the concept may encounter similar problems as spotlight metaphors. Attending to multiple moving items (Cavanagh & Alvarez 2005), perceptual grouping (Kerzel et al 2012;Vatterott & Vecera 2015), or predictability (Jefferies et al 2014) can shape or divide the attentional window, arguing against the idea of a single FVF. Additionally, whether items within spatially constrained FVFs are processed in parallel is not clear.…”

Section: Laurent Ittimentioning

confidence: 99%

The impending demise of the item in visual search

Hulleman¹,

Olivers²

2015

Behav Brain Sci

104

118

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The way the cognitive system scans the visual environment for relevant information - visual search in short - has been a long-standing central topic in vision science. From its inception as a research topic, and despite a number of promising alternative perspectives, the study of visual search has been governed by the assumption that a search proceeds on the basis of individual items (whether processed in parallel or not). This has led to the additional assumptions that shallow search slopes (at most a few tens of milliseconds per item for target-present trials) are most informative about the underlying process, and that eye movements are an epiphenomenon that can be safely ignored. We argue that the evidence now overwhelmingly favours an approach that takes fixations, not individual items, as its central unit. Within fixations, items are processed in parallel, and the functional field of view determines how many fixations are needed. In this type of theoretical framework, there is a direct connection between target discrimination difficulty, fixations, and reaction time (RT) measures. It therefore promises a more fundamental understanding of visual search by offering a unified account of both eye movement and manual response behaviour across the entire range of observed search efficiency, and provides new directions for research. A high-level conceptual simulation with just one free and four fixed parameters shows the viability of this approach.

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“…1 A potential function of perceptual grouping is to coarsely organize the visual scene into a smaller number of units, so attention can be selectively allocated to one or some of the units. This has been empirically supported by studies that demonstrated effects of perceptual grouping on attention (Kasai & Takeya, 2012;Kerzel, Born, & Schonhammer, 2012;Vatterott & Vecera, 2015). Therefore, it is a reasonable conjecture that perceptual grouping occurs prior to attention.…”

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confidence: 64%

Attention without awareness: Attentional modulation of perceptual grouping without awareness

Lo¹

2017

Atten Percept Psychophys

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Perceptual grouping is the process through which the perceptual system combines local stimuli into a more global perceptual unit. Previous studies have shown attention to be a modulatory factor for perceptual grouping. However, these studies mainly used explicit measurements, and, thus, whether attention can modulate perceptual grouping without awareness is still relatively unexplored. To clarify the relationship between attention and perceptual grouping, the present study aims to explore how attention interacts with perceptual grouping without awareness. The task was to judge the relative lengths of two centrally presented horizontal bars while a railway-shaped pattern defined by color similarity was presented in the background. Although the observers were unaware of the railway-shaped pattern, their line-length judgment was biased by that pattern, which induced a Ponzo illusion, indicating grouping without awareness. More importantly, an attentional modulatory effect without awareness was manifested as evident by the observer's performance being more often biased when the railway-shaped pattern was formed by an attended color than when it was formed by an unattended one. Also, the attentional modulation effect was shown to be dynamic, being more pronounced with a short presentation time than a longer one. The results of the present study not only clarify the relationship between attention and perceptual grouping but also further contribute to our understanding of attention and awareness by corroborating the dissociation between attention and awareness.

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The attentional window configures to object and surface boundaries

Cited by 15 publications

References 33 publications

Attentional capture by a color singleton is stronger at spatially relevant than irrelevant locations: Evidence from an ERP study

Attentional capture by a color singleton is stronger at spatially relevant than irrelevant locations: Evidence from an ERP study

The impending demise of the item in visual search

Attention without awareness: Attentional modulation of perceptual grouping without awareness

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