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

Differences in apparent contrast in yellow and white light

J Rabin1, R Wiley

  • 1Aircrew Health and Performance Division, US Army Aeromedical Research Laboratory, Fort Rucker, AL 36362-0577, USA.

Ophthalmic & Physiological Optics : the Journal of the British College of Ophthalmic Opticians (Optometrists)
|January 1, 1996
PubMed
Summary

Yellow light slightly enhances perceived contrast of letters at lower levels, an effect that decreases as contrast increases. This finding may explain the subjective visual benefits of yellow lenses.

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

Work Programming for Psychiatric ClientsAn Interdisciplinary Approach.

Work (Reading, Mass.)·2014
Same author

Estrogen-receptor polymorphism, spontaneous-abortion, and breast-cancer risk.

International journal of oncology·2011
Same author

Biomechanical evaluation of a veterinary suture anchor in the canine cadaver pelvis and femur.

Veterinary and comparative orthopaedics and traumatology : V.C.O.T·2006
Same author

Efficacy of a proximal occlusion catheter with reversal of flow in the prevention of embolic events during carotid artery stenting: an experimental analysis.

Journal of vascular surgery·2001
Same author

Expression of the Th1 chemokine IFN-gamma-inducible protein 10 in the airway alters mucosal allergic sensitization in mice.

Journal of immunology (Baltimore, Md. : 1950)·2001
Same author

Does the endovascular repair of aortoiliac aneurysms pose a radiation safety hazard to vascular surgeons?

Journal of vascular surgery·2000

Area of Science:

  • Visual Perception
  • Optometry
  • Color Science

Background:

  • Suprathreshold contrast perception is crucial for visual tasks.
  • The influence of lighting conditions, such as yellow light, on contrast perception is not fully understood.
  • Yellow (blue-blocking) lenses are anecdotally reported to improve visual comfort and clarity.

Purpose of the Study:

  • To investigate and quantify the effect of yellow light on suprathreshold contrast perception.
  • To compare the perceived contrast of yellow-on-yellow letters versus black-on-white letters.
  • To explore potential mechanisms behind any observed differences in contrast perception.

Main Methods:

  • Participants viewed a video display with simultaneously presented black-on-white and yellow-on-yellow letters.

Related Experiment Videos

  • The contrast of black-on-white letters was adjusted to match the perceived contrast of yellow-on-yellow letters.
  • Experiments were conducted across a range of contrast levels and letter sizes.

    • Main Results:

    • At lower contrast levels (7-15%), yellow letters exhibited a mean apparent contrast enhancement of 23% compared to black-on-white letters.
    • This enhancement effect diminished significantly as contrast levels increased.
    • The observed enhancement was independent of letter size and not attributable to differences in display luminance.

    Conclusions:

    • Yellow light can slightly enhance suprathreshold contrast perception, particularly at lower contrast levels.
    • The findings suggest a potential mechanism for the subjective visual improvements reported with yellow lenses.
    • Further research is warranted to explore the specific neural pathways involved in this phenomenon.