Ernst weber contribution to psychology
Weber-fechner law formula...
Weber's law just noticeable difference
Weber–Fechner law
Related laws in the field of psychophysics
The Weber–Fechner laws are two related scientific laws in the field of psychophysics, known as Weber's law and Fechner's law.
Both relate to human perception, more specifically the relation between the actual change in a physical stimulus and the perceived change. This includes stimuli to all senses: vision, hearing, taste, touch, and smell.
Ernst Heinrich Weber states that "the minimum increase of stimulus which will produce a perceptible increase of sensation is proportional to the pre-existent stimulus," while Gustav Fechner's law is an inference from Weber's law (with additional assumptions) which states that the intensity of our sensation increases as the logarithm of an increase in energy rather than as rapidly as the increase.[1]
History and formulation of the laws
Both Weber's law and Fechner's law were formulated by Gustav Theodor Fechner (1801–1887).
They were first published in 1860 i
