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Comment
. 2019 Nov;23(11):906-908.
doi: 10.1016/j.tics.2019.09.001. Epub 2019 Oct 17.

Weber's Law: A Mechanistic Foundation after Two Centuries

Jeroen Brus  1 , Joseph A Heng  1 , Rafael Polanía  2
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Comment

Weber's Law: A Mechanistic Foundation after Two Centuries

Jeroen Brus et al. Trends Cogn Sci. 2019 Nov.

Abstract

Weber's law appears to be a universal principle describing how we discriminate between physical magnitudes. However, this law remained purely descriptive for nearly two centuries. A study by Pardo-Vazquez et al. finally provides a mechanistic explanation, revealing how both accuracy and reaction-time performance lawfully emerge during sensory discrimination tasks.

Keywords: decision making; drift-diffusion model; perception; psychophysics.

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  • The mechanistic foundation of Weber's law.
    Pardo-Vazquez JL, Castiñeiras-de Saa JR, Valente M, Damião I, Costa T, Vicente MI, Mendonça AG, Mainen ZF, Renart A. Pardo-Vazquez JL, et al. Nat Neurosci. 2019 Sep;22(9):1493-1502. doi: 10.1038/s41593-019-0439-7. Epub 2019 Aug 12. Nat Neurosci. 2019. PMID: 31406366

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