Weber's law

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Noun1.Weber's law - (psychophysics) the concept that a just-noticeable difference in a stimulus is proportional to the magnitude of the original stimulus; "Weber's law explains why you don't notice your headlights are on in the daytime"
law of nature, law - a generalization that describes recurring facts or events in nature; "the laws of thermodynamics"
psychophysics - the branch of psychology concerned with quantitative relations between physical stimuli and their psychological effects
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The idea of WLD operator is inspired by Weber's law [13].
That same trend, described by what's called Weber's law, shows up in humans' nonverbal approximate number system as well as in those of other animals.
Among other things, Sense of Touch describes Weber's influential two-point discrimination test and provides the fullest description of what came to be known as Weber's Law. (2) It also elaborates considerably on Weber's investigations, first described in De Tactu, of the human body's response to hot and cold stimuli.
Note that, based on considerable basic psychophysical research, Weber's law states that difference thresholds are a constant proportion of the original stimulus (Kling & Riggs, 1971).
Weber's Law and the Biological Evolution of Risk Preferences.
Weber's Law. One empirical constraint that cannot be neglected by any credible scaling system is that the difference threshold [DELTA]S tends to be proportional to S over much of the dynamic range of the stimulus attribute (Fechner, 1860/1966).
Transition from DeVries-Rose to Weber's law: Reply to Garcia-Perez and Peli (1997).