Spectral responsivity of the white-black channel

Journal of the Optical Society of America. A, Optics and Image Science
K FuldC W Slade

Abstract

Three subjects viewed, foveally and monocularly, a monochromatic test field of 0.6-deg diameter that was surrounded by a white annulus of 0.6-deg inner diameter and 4.5-deg outer diameter. The wavelength of the central test field was varied in steps of 10 nm from 440 to 640 nm, and its luminance was set to 100 Td. Center and surround were flashed together for 2 sec every 4 sec. The subjects adjusted the luminance of the surround so that the central field was perceived as having equal amounts of whiteness and blackness. The luminance of the surround required for this balance point varied with the wavelength of the test field in a manner that closely resembled a heterochromatic brightness matching function obtained under similar conditions. Control experiments ruled out the possibility that the subjects were making brightness matches between center and surround fields. Additional evidence was provided suggesting that the spectral responsivity of the putative white-black channel is best represented by a photopic spectral sensitivity curve based on equal brightness.

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Citations

Nov 1, 1992·Vision Research·P Heggelund
Jan 1, 1989·Vision Research·V J VolbrechtB R Wooten
Jan 1, 1989·Vision Research·S K Shevell
Sep 12, 2006·Visual Neuroscience·David L BimlerChingis A Izmailov
Feb 1, 1997·Journal of the Optical Society of America. A, Optics, Image Science, and Vision·K ShinomoriJ S Werner
Jan 1, 1990·Journal of the Optical Society of America. A, Optics and Image Science·V J VolbrechtC M Cicerone
Sep 1, 1994·Journal of the Optical Society of America. A, Optics, Image Science, and Vision·K ShinomoriK Uchikawa
Dec 26, 2008·Journal of the Optical Society of America. A, Optics, Image Science, and Vision·David L BimlerChingis A Izmailov
Aug 1, 1989·Journal of the Optical Society of America. A, Optics and Image Science·T D Kulp, K Fuld

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