Jove
Visualize
Contact Us

Related Experiment Videos

Interocular sensitization to a rod-detected test.

A Reeves, N S Peachey, E Auerbach

    Vision Research
    |January 1, 1986
    PubMed
    Summary

    Intense red light adaptation in one eye enhances light sensitivity in the other eye for a short period. This "interocular sensitization" effect is specific to certain conditions and visual pathways.

    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

    Management and biosecurity practices by small to medium egg producers in Scotland.

    British poultry science·2021
    Same author

    Strategies for screening young stock for antibodies - optimising numbers to test, cut-points, & predictive values for bovine viral diarrhoea virus.

    Scientific reports·2018
    Same author

    British Escherichia coli O157 in Cattle Study (BECS): to determine the prevalence of E. coli O157 in herds with cattle destined for the food chain.

    Epidemiology and infection·2017
    Same author

    Gender violence, poverty and HIV infection risk among persons engaged in the sex industry: cross-national analysis of the political economy of sex markets in 30 European and Central Asian countries.

    HIV medicine·2017
    Same author

    Fit-for-work or fit-for-unemployment? Does the reassessment of disability benefit claimants using a tougher work capability assessment help people into work?

    Journal of epidemiology and community health·2015
    Same author

    'First, do no harm': are disability assessments associated with adverse trends in mental health? A longitudinal ecological study.

    Journal of epidemiology and community health·2015
    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

    Area of Science:

    • Vision science
    • Ophthalmology
    • Photoreceptor physiology

    Background:

    • The human visual system exhibits complex adaptive mechanisms to varying light conditions.
    • Interocular transfer of visual information is a known phenomenon, but its underlying mechanisms are not fully understood.
    • Scotopic (low-light) and photopic (bright-light) vision rely on different photoreceptor populations and neural pathways.

    Purpose of the Study:

    • To investigate the phenomenon of "interocular sensitization" where adaptation in one eye affects the other.
    • To determine the specific conditions (light wavelength, intensity, retinal location, flash duration) under which this effect occurs.
    • To elucidate the role of different visual pathways (scotopic vs. photopic) in interocular sensitization.

    Main Methods:

    • Participants underwent intense red light adaptation in one eye.
    • The visual threshold (minimum light intensity detectable) for a test flash in the other eye was measured.
    • Test flashes varied in wavelength (661 nm, 491 nm), retinal location (foveal, extrafoveal), and duration.
    • Adaptation conditions were manipulated, including using blue or green light matched photopically or scotopically.

    Main Results:

    • Intense red light adaptation (661 nm) in one eye significantly lowered the detection threshold in the fellow eye for extrafoveal flashes (by ~0.15 log units for 10-15 min).
    • This interocular sensitization was also observed with a 491 nm extrafoveal test flash.
    • The effect was absent when the 661 nm test flash was foveal, small, or brief.
    • Blue or green light adaptations, regardless of photopic or scotopic matching, did not induce interocular sensitization.

    Conclusions:

    • Interocular sensitization is a real phenomenon, demonstrating cross-eye influence on visual sensitivity.
    • The effect is dependent on scotopic visual system mediation and specific light adaptation parameters.
    • Red light adaptation appears to uniquely prime the contralateral eye for enhanced scotopic detection, particularly for extrafoveal stimuli.

    Related Experiment Videos