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Dictionary definition of “JND”

JND

n. in psychophysics, the minimum difference between two inputs which is detectable by a human. Subjects: , ,
Etymological Note: just noticeable difference
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Citations: 1956 R. Duncan Luce Econometrica (Apr.) “Semiorders and a Theory of Utility Discrimination” vol. 24, no. 2, p. 181: The two j.n.d. functions of the induced semiorder are two of the given functions. 1986 [harnad@mind.UUCP (Stevan Harnad)] Usenet: sci.med (Nov. 12) “Re: tone deafness?”: With this method, the “just-noticeable-difference,” (jnd) can be calculated. 2004 Mike McClintock Washington Post (July 8) “Home Sense”: Many people can detect a change of only one dB, which in engineering parlance goes by an interestingly non-jargon, non-technical term called the JND, or Just Noticeable Difference.
Posted 22 Jul 04 | Permalink | Tell a Friend

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