Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Black spectral responsivity.

T D Kulp1, K Fuld

  • 1Department of Psychology, University of New Hampshire, Durham 03824.

Journal of the Optical Society of America. A, Optics and Image Science
|August 1, 1989
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

The effect of epoch length and smoothing on infant sleep and waking state architecture for term infants at 42 to 46 weeks postconceptional age.

Sleep·2000
Same author

Sex differences in macular pigment optical density: relation to plasma carotenoid concentrations and dietary patterns.

Vision research·1996
Same author

Iris color and macular pigment optical density.

Experimental eye research·1996
Same author

Macular pigment density in monozygotic twins.

Investigative ophthalmology & visual science·1995
Same author

The prediction of hue and saturation for non-spectral lights.

Vision research·1995
Same author

Interocular differences in macular pigment density.

Investigative ophthalmology & visual science·1992
Same journal

Phase retrieval with prior information.

Journal of the Optical Society of America. A, Optics and image science·2008
Same journal

Clinical microscopy of the cornea utilizing optical sectioning and a high-numerical-aperture objective.

Journal of the Optical Society of America. A, Optics and image science·1993
Same journal

Eye-tracking laser Doppler velocimeter stabilized in two dimensions: principle, design, and construction.

Journal of the Optical Society of America. A, Optics and image science·1993
Same journal

Effects of aging in retinal image quality.

Journal of the Optical Society of America. A, Optics and image science·1993
Same journal

Axial eye-length measurement by wavelength-shift interferometry.

Journal of the Optical Society of America. A, Optics and image science·1993
Same journal

Fractal analysis of steady-state-flicker visual evoked potentials: feasibility.

Journal of the Optical Society of America. A, Optics and image science·1993
See all related articles

Researchers investigated how different instructions affect the perception of blackness in visual fields. Findings suggest that neither absolute blackness nor contour disappearance consistently aligns with standard photometric methods for measuring visual efficiency.

Area of Science:

  • Visual perception
  • Color science
  • Psychophysics

Background:

  • Understanding the perception of 'blackness' is crucial for visual science.
  • Existing methods for measuring spectral luminous efficiency, such as heterochromatic flicker photometry (HFP) and brightness matching (HBM), may not fully capture all aspects of visual perception.

Purpose of the Study:

  • To compare spectral luminous efficiency functions derived from two distinct visual perception tasks: inducing absolute blackness versus disappearing a contour.
  • To test the hypothesis that different instructions would correlate with different photometric methods (HFP vs. HBM).

Main Methods:

  • Six subjects participated in the study.
  • Subjects adjusted the radiance of a monochromatic annulus surrounding a broadband field to induce blackness or disappear a contour.

Related Experiment Videos

  • Spectral luminous efficiency functions were measured using heterochromatic flicker photometry (HFP) and brightness matching (HBM).

    • Main Results:

    • The hypothesis that contour disappearance would align with HFP and absolute blackness with HBM was not supported.
    • Only one subject showed a better fit for blackness spectral efficiency with HFP over HBM.
    • One subject showed a better fit with HBM over HFP.
    • The remaining four subjects showed no significant difference in fit between HFP and HBM.

    Conclusions:

    • The method of inducing blackness (absolute blackness vs. contour disappearance) did not consistently predict which photometric method (HFP or HBM) would best represent the spectral efficiency of blackness.
    • Individual differences in visual perception may play a significant role.
    • Further research is needed to understand the relationship between different visual perception tasks and established photometric measurements.