See Also: Weber(medicine)
Weber, Max(encyclopedia)
Weber's law(encyclopedia)
Weber(dictionary)
Weber's law(medicine)
Weber, Moritz(medicine)
Weber, Sir Hermann(medicine)
Weber, Wilhelm(medicine)
Weber-Fechner law(medicine)
Fechner-Weber law(medicine)

Weber's law (sh)




or Weber-Fechner law

In psychophysics, a historically important law quantifying the perception of change in a given stimulus.

Originated by the German physiologist Ernst Heinrich Weber (1795-1878) in 1834 and elaborated by his student Gustav Theodor Fechner, the law states that the change in a stimulus that will be just noticeable is a constant ratio of the original stimulus. It was later shown not to hold for extremes of stimulation.