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

Continuous measurement of visible persistence.

E Weichselgartner, G Sperling

    Journal of Experimental Psychology. Human Perception and Performance
    |December 1, 1985
    PubMed
    Summary

    Researchers developed a new method to measure how quickly we perceive light brightness. This technique precisely maps the subjective temporal brightness response function of brief flashes.

    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

    Effects of glyceryl glucoside on AQP3 expression, barrier function and hydration of human skin.

    Skin pharmacology and physiology·2012
    Same author

    A study of the pathogenesis of chronic pulmonary disease (bronchiectasis) of old rats.

    Journal of gerontology·2010
    Same author

    Bone growth in normal and retarded growth rats.

    Journal of gerontology·2010
    Same author

    Three-systems theory of human visual motion perception: review and update.

    Journal of the Optical Society of America. A, Optics, image science, and vision·2001
    Same author

    Sensitive calibration and measurement procedures based on the amplification principle in motion perception.

    Vision research·2001
    Same author

    Perceptual motion standstill in rapidly moving chromatic displays.

    Proceedings of the National Academy of Sciences of the United States of America·1999

    Area of Science:

    • Psychophysics
    • Visual Perception
    • Neuroscience

    Background:

    • The synchrony judgment paradigm assesses temporal visual perception.
    • Visible persistence is influenced by interclick intervals.
    • Accurate measurement of subjective brightness is crucial for understanding visual processing.

    Purpose of the Study:

    • To develop and validate an enhanced psychophysical method for measuring the temporal brightness response function of brief light flashes.
    • To precisely trace the subjective rise and decay of perceived flash brightness.

    Main Methods:

    • An elaborated synchrony judgment paradigm involving two phases was employed.
    • Phase 1: Psychophysical matching of reference stimulus luminance to test flash peak brightness.
    • Phase 2: Observers judged click timing relative to subjective brightness thresholds (onset and termination) using varied reference stimuli.

    Main Results:

    • The method was validated on three subjects using stimuli with slow luminance changes.
    • The technique successfully traced the precise subjective rise and decay of brief flash brightness.
    • This provides a detailed temporal brightness response function.

    Conclusions:

    • The elaborated synchrony judgment method accurately quantifies the subjective temporal dynamics of light flashes.
    • This approach offers a precise tool for investigating visual persistence and temporal perception.
    • Findings contribute to a deeper understanding of how the visual system processes transient light stimuli.

    Related Experiment Videos