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

Increments and decrements: luminance discrimination.

P Whittle

    Vision Research
    |January 1, 1986
    PubMed
    Summary
    This summary is machine-generated.

    Visual perception of luminance differences was studied. Thresholds for detecting light changes in squares varied with duration and intensity, with stronger decrements being more noticeable than increments above a

    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

    After the smoke has cleared--reflections on Scotland's tobacco control legislation.

    Public health·2008
    Same author

    A new class of selective and potent inhibitors of neuronal nitric oxide synthase.

    Bioorganic & medicinal chemistry letters·1999
    Same author

    Causal beliefs and acute psychiatric hospital admission.

    The British journal of medical psychology·1996
    Same author

    Contrast discrimination at high contrasts reveals the influence of local light adaptation on contrast processing.

    Vision research·1996
    Same author

    Antiviral activity of human immunodeficiency virus type 1 protease inhibitors in a single cycle of infection: evidence for a role of protease in the early phase.

    Journal of virology·1994
    Same author

    Spatial integration and sensitivity changes in the human rod visual system.

    The Journal of physiology·1993
    Same journal

    Impact of crowding on visual appearance and performance in amblyopia.

    Vision research·2026
    Same journal

    Editorial for VSI Amblyopia: Advances in Amblyopia Research.

    Vision research·2026
    Same journal

    Computational and mathematical models in vision: Quantitative approaches to understanding visual perception.

    Vision research·2026
    Same journal

    Complex interactions between lightness, chroma, and hue in color ensemble perception.

    Vision research·2026
    Same journal

    Driving with autism spectrum disorder: Exploring the impact of tactile hazard warnings on gaze behavior and hazard responses.

    Vision research·2026
    Same journal

    Early visual processing in adults with ADHD: evidence from contrast sensitivity, spatial integration, and external noise.

    Vision research·2026
    See all related articles

    Area of Science:

    • Visual perception
    • Psychophysics
    • Photometry

    Background:

    • Understanding luminance discrimination is crucial for visual science.
    • Previous research has explored factors influencing visual detection thresholds.

    Purpose of the Study:

    • To measure photopic luminance discrimination thresholds.
    • To investigate the effect of stimulus duration and luminance difference on detection.

    Main Methods:

    • Measured discrimination thresholds for 1-degree squares.
    • Varying stimulus durations from 6 to 800 msec.
    • Utilized an 11-degree background with controlled luminance.

    Main Results:

    • Thresholds were proportional to luminance difference for increments and weak decrements.

    Related Experiment Videos

  • Stronger decrements were more discriminable than increments.
  • Data for durations >100 msec followed a specific rule relating luminance changes.

    • Conclusions:

    • Luminance discrimination is dependent on both stimulus intensity and duration.
    • A distinct 'black limit' affects decrement perception.
    • A general rule describes performance for longer durations.