Just-noticeable Difference

In psychophysics, a just-noticeable difference, customarily abbreviated with lowercase letters as jnd, is the smallest detectable difference between a starting and secondary level of a particular sensory stimulus. It is also known as the difference limen or the differential threshold.

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Famous quotes containing the word difference:

    The difference between the almost right word and the right word is the difference between the lightning- bug and the lightning.
    Mark Twain [Samuel Langhorne Clemens] (1835–1910)