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Number adaptation: Reply.

David Burr¹, Giovanni Anobile¹, Roberto Arrighi¹

¹Department of Neuroscience, University of Florence, Italy.

|December 1, 2024

Summary

This summary is machine-generated.

Number adaptation, a key feature of the number sense, is robust despite challenges. Evidence confirms adaptation exists and is crucial for understanding numerical cognition, refuting the "old news hypothesis".

Keywords:

Adaptation Multi-sensory perception Numerosity perception

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Area of Science:

Cognitive Neuroscience
Perceptual Psychology
Numerical Cognition

Background:

Adaptation is a fundamental property of perceptual systems, enhancing sensitivity and dynamic range.
The human number sense, crucial for numerical cognition, is widely considered adaptable.
Recent research proposed the "old news hypothesis" challenging the existence of number adaptation.

Purpose of the Study:

To critically evaluate the evidence for the "old news hypothesis" regarding number adaptation.
To present supporting evidence for the existence of number adaptation.
To reconcile conflicting findings on number adaptation in numerical cognition.

Main Methods:

Analysis of statistical significance and effect sizes from studies supporting the "old news hypothesis".
Review of neuroimaging (fMRI, EEG), pupillometry, and psychophysical studies.
Comparison of empirical data with predictions from adaptation and "old news" models.

Main Results:

The effects predicted by the "old news hypothesis" are statistically significant but too small to explain robust adaptation.
Neuroimaging, pupillometry, and psychophysical data consistently support the existence of number adaptation.
Findings contradict the "old news hypothesis" and support traditional models of number adaptation.

Conclusions:

Number adaptation is a real and significant phenomenon in the number sense.
The "old news hypothesis" fails to adequately explain the observed adaptation.
Number adaptation remains a vital concept for understanding numerical cognition.