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Showing papers by "Brian A. Wandell published in 1982"


Journal ArticleDOI
TL;DR: The new student of color vision begins with a false sense of security that there are simple computational rules for assigning three-dimensional coordinates to lights and that these same coordinate values—or some close relative—can be used to calculate.
Abstract: The new student of color vision begins with a false sense of security. The student learns that there are simple computational rules for assigning three-dimensional coordinates to lights. This scheme assigns equal coordinates to lights only when the lights appear identical (even though the lights may be physically different). Furthermore, the coordinates assigned to a light (a '+' b) formed by mixing together lights a and b is simply the sum of the coordinates assigned to light a plus the coordinates assigned to b. Such a scheme for assigning vectors to lights characterizes those instances when different lights have precisely the same color appearance. This leads the initiate to imagine that these same coordinate values—or some close relative—can be used to calculate

24 citations


Journal ArticleDOI
TL;DR: The results suggest that a test light detected by a signal initiated primarily in the long-wavelength receptors will be ultimately detected by different sets of nerve cells, depending upon the background illumination.

22 citations


Journal ArticleDOI
TL;DR: A model of long-wavelength test sensitivity upon large, uniform backgrounds explains changes in sensitivity in the red-green detection pathways strictly based upon losses ofensitivity in the receptors.

6 citations