Multitudes are adaptable magnitudes in the estimation of number

Visual number comparison does not require participants to choose a unit, whereas units are fundamental to the definition of number. Studies using magnitude estimation rather than comparison show that number perception is compressed dramatically past about 20 units. Even estimates of 5–20 items are i...

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Bibliographic Details
Published in:The Behavioral and brain sciences 2017, Vol.40, p.e170-e170, Article e170
Main Author: Durgin, Frank H.
Format: Article
Language:English
Subjects:
Adaptation
Collections
Estimates
Information sources
Linguistics
Open Peer Commentary
Perceptions
Psychology
Visual effects
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Summary:Visual number comparison does not require participants to choose a unit, whereas units are fundamental to the definition of number. Studies using magnitude estimation rather than comparison show that number perception is compressed dramatically past about 20 units. Even estimates of 5–20 items are increasingly susceptible to effects of visual adaptation, suggesting a rather narrow range in which subitizing-like categorization processes blend into greater reliance on adaptable magnitude information.
ISSN:0140-525X
1469-1825
DOI:10.1017/S0140525X16002302