ArticleFrontiers in human neuroscience2021
The Grouping-Induced Numerosity Illusion Is Attention-Dependent.
Article in Frontiers in human neuroscience, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed.
- Perceptual grouping, not covert attention, drives the connectedness effect in the ANS.Psychological research · 2026Article
- Connectedness effects in enumeration of small numbers.Attention, perception & psychophysics · 2025Article
- Feature-selective adaptation of numerosity perception.Proceedings. Biological sciences · 2025Article
- Altered oculomotor flexibility is linked to high autistic traits.Scientific reports · 2023Article
- The symmetry-induced numerosity illusion depends on visual attention.Scientific reports · 2023Article
- Autistic individuals show less grouping-induced bias in numerosity judgments.Frontiers in child and adolescent psychiatry · 2023Article
- Symmetry as a grouping cue for numerosity perception.Scientific reports · 2022Article
- Article
- Visual P2p component responds to perceived numerosity.Frontiers in human neuroscience · 2022Article
- The dynamics of grouping-induced biases in apparent numerosity revealed by a continuous tracking technique.Journal of vision · 2021Article
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Authors and funding
3 authors.
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Abstract
Perceptual grouping and visual attention are two mechanisms that help to segregate visual input into meaningful objects. Here we report how perceptual grouping, which affects perceived numerosity, is reduced when visual attention is engaged in a concurrent visual task. We asked participants to judge the numerosity of clouds of dot-pairs connected by thin lines, known to cause underestimation of numerosity, while simultaneously performing a color conjunction task. Diverting attention to the concomitant visual distractor significantly reduced the grouping-induced numerosity biases. Moreover, while the magnitude of the illusion under free viewing covaried strongly with AQ-defined autistic traits, under conditions of divided attention the relationship was much reduced. These results suggest that divided attention modulates the perceptual grouping of elements by connectedness and that it is independent of the perceptual style of participants.
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