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Do estimates of numerosity really adhere to Weber’s law? A reexamination of two case studies by Testolin, Alberto; McClelland, James L. is a Neuroscience article available to read on EtoBox.
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## Abstract Both humans and nonhuman animals can exhibit sensitivity to the approximate number of items in a visual array or events in a sequence, and across various paradigms, uncertainty in numerosity judgments increases with the number estimated or produced. The pattern of increase is usually described as exhibiting approximate adherence to Weber’s law, such that uncertainty increases proportionally to the mean estimate, resulting in a constant coefficient of variation. Such a pattern has been proposed to be a signature characteristic of an innate “number sense.” We reexamine published behavioral data from two studies that have been cited as prototypical evidence of adherence to Weber’s law and observe that in both cases variability increases less than this account would predict, as indicated by a decreasing coefficient of variation with an increase in number. We also consider evidence from numerosity discrimination studies that show deviations from the constant coefficient of variation pattern. Though behavioral data can sometimes exhibit approximate adherence to Weber’s law, our findings suggest that such adherence is not a fixed characteristic of the mechanisms whereby humans
Who reads Do estimates of numerosity really adhere to Weber’s law? A reexamination of two case studies?
It is typically read by researchers, students, and practitioners in Neuroscience.
- Author
- Testolin, Alberto; McClelland, James L.
- Publisher
- Springer-Verlag; Springer - Psychonomic Society; Springer New York LLC; Springer Science and Business Media LLC; Society for Mining, Metallurgy and Exploration Inc. (ISSN 1069-9384)
- Published
- 2020
- Language
- EN
- ISBN
- 9781342302007
- Field
- Neuroscience (Life Sciences)