Definition of Weber-Fechner law

1. Noun. (psychophysics) the concept that the magnitude of a subjective sensation increases proportional to the logarithm of the stimulus intensity; based on early work by E. H. Weber.

Exact synonyms: Fechner's Law
Generic synonyms: Law, Law Of Nature
Category relationships: Psychophysics

Medical Definition of Weber-Fechner law

1. The intensity of a sensation varies by a series of equal increments (arithmetically) as the strength of the stimulus is increased geometrically; if a series of stimuli is applied and so adjusted in strength that each stimulus causes a just perceptible change in intensity of the sensation, then the strength of each stimulus differs from the preceding one by a constant fraction; thus, if a just perceptible change in a visual sensation is produced by the addition of 1 candle to an original illumination of 100 candles, 10 candles will be required to produce any change in sensation when the original illumination was one of 1000 candles. Synonym: Fechner-Weber law, Weber's law. (05 Mar 2000)

Lexicographical Neighbors of Weber-Fechner Law

Web services
Web spider
Web spiders
Webb
Weber's experiment
Weber's glands
Weber's law
Weber's point
Weber's sign
Weber's syndrome
Weber's test for hearing
Weber's triangle
Weber-Christian disease
Weber-Cockayne syndrome
Weber-Fechner law (current term)
Weberian
Weberian ossicle
Weberian ossicles
Webinar
Webinars
Webley
Weblinks
Webster
Webster's operation
Webster's test
Websterian
Websterism
Websterisms
Websters

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