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Perception of blackness.

C M Cicerone, V J Volbrecht, S K Donnelly

    Journal of the Optical Society of America. A, Optics and Image Science
    |April 1, 1986
    PubMed
    Summary
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    Induced blackness perception is inversely related to the luminous efficiency function. This spectral efficiency of induced blackness is distinct from increment-threshold functions, suggesting luminance pathway involvement.

    Area of Science:

    • Vision Science
    • Perceptual Psychology
    • Photometry

    Background:

    • The perception of blackness is a complex visual phenomenon.
    • Understanding the underlying mechanisms is crucial for visual science.

    Purpose of the Study:

    • To measure the spectral efficiency of induced blackness.
    • To compare induced blackness with increment-threshold functions.
    • To determine the role of luminance and chromatic pathways in blackness perception.

    Main Methods:

    • Utilized a stimulus with a central spot, dark ring, and surrounding annular zone presented in Maxwellian view.
    • Measured the radiance of the annulus required to induce uniform blackness across different wavelengths.
    • Measured increment-threshold functions using the same stimulus configuration.

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    Main Results:

    • The spectral efficiency of induced blackness consistently matched the inverse of the V lambda function.
    • Increment-threshold functions did not align with V lambda or blackness functions.
    • Induced blackness was independent of the wavelengths of the annulus and central spot.

    Conclusions:

    • Induced blackness is inversely related to the luminous efficiency function.
    • The spectral efficiency of induced blackness is distinct from increment-threshold functions.
    • Results support the involvement of the luminance pathway and argue against chromatic pathway involvement in blackness perception.