ArticleFrontiers in human neuroscience2021
Groupitizing Improves Estimation of Numerosity of Auditory Sequences.
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.
- From shape to number: Shape-from-dots homogeneity boosts groupitizing enumeration.Psychonomic bulletin & review · 2025Article
- "Groupitizing": A Visuo-Spatial and Arithmetic Phenomenon.Open mind : discoveries in cognitive science · 2025Article
- Article
- EEG signature of grouping strategies in numerosity perception.Frontiers in neuroscience · 2023Article
- The role of non-numerical information in the perception of temporal numerosity.Frontiers in psychology · 2023Article
- Spatial number estimation has a higher linear range than temporal number estimation; differential affordances for subdivision might help to explain why.Journal of vision · 2022Article
- Article
- Unimpaired groupitizing in children and adolescents with dyscalculia.Scientific reports · 2022Article
- Groupitizing modifies neural coding of numerosity.Human brain mapping · 2022Article
- Electrophysiological Signatures of Numerosity Encoding in a Delayed Match-to-Sample Task.Frontiers in human neuroscience · 2021Article
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5 authors.
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Abstract
Groupitizing is a recently described phenomenon of numerosity perception where clustering items of a set into smaller "subitizable" groups improves discrimination. Groupitizing is thought to be rooted on the subitizing system, with which it shares several properties: both phenomena accelerate counting and decrease estimation thresholds irrespective of stimulus format (for both simultaneous and sequential numerosity perception) and both rely on attention. As previous research on groupitizing has been almost completely limited to vision, the current study investigates whether it generalizes to other sensory modalities. Participants estimated the numerosity of a series of tones clustered either by proximity in time or by similarity in frequency. We found that compared with unstructured tone sequences, grouping lowered auditory estimation thresholds by up to 20%. The groupitizing advantage was similar across different grouping conditions, temporal proximity and tone frequency similarity. These results mirror the groupitizing effect for visual stimuli, suggesting that, like subitizing, groupitizing is an a-modal phenomenon.
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