stimulus magnitude

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stimulus magnitude

psychology

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contribution by Fechner

In Gustav Fechner
…in relation to the physical magnitude of stimuli. Most important, he devised an equation to express the theory of the just-noticeable difference, advanced earlier by Ernst Heinrich Weber. This theory concerns the sensory ability to discriminate when two stimuli (e.g., two weights) are just noticeably different from each other. Later…
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psychophysics

In psychophysics
By determining the stimulus magnitude that is just sufficient to produce a sensation (or a response), it is possible to specify the minimum perceptible stimulus, or the absolute stimulus threshold (stimulus limen), for the various senses. The central inquiry of psychophysics pertains to the search for a lawful,…
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