Jove
Visualize
Contact Us

Related Experiment Videos

Temporal determinants of spatial sine-wave masking.

A J Pantle

    Vision Research
    |January 1, 1983
    PubMed
    Summary
    This summary is machine-generated.

    This study investigated visual perception by measuring contrast thresholds for gratings. Temporal modulation of visual stimuli suggests separate detection mechanisms for steady versus flickering patterns.

    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

    Direction-specific changes of sensitivity after brief apparent motion stimuli.

    Vision research·2001
    Same author

    Direction biasing by brief apparent motion stimuli.

    Vision research·2000
    Same author

    Visual inertia of rotating 3-D objects.

    Perception & psychophysics·1998
    Same author

    Effects of spatial parameters on the perceptual organization of a bistable motion display.

    Perception & psychophysics·1980
    Same author

    Temporal frequency response characteristic of motion channels measured with three different psychophysical techniques.

    Perception & psychophysics·1978
    Same author

    Apparent movement of successively generated subjective figures.

    Perception·1978
    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:

    • Visual perception
    • Psychophysics
    • Neuroscience

    Background:

    • Understanding visual processing of spatial patterns is crucial.
    • Contrast thresholds reveal limitations and mechanisms of visual detection.
    • Temporal modulation can influence how visual stimuli are perceived.

    Purpose of the Study:

    • To measure the contrast threshold of a sinusoidal test grating.
    • To investigate the effect of background grating contrast on detection thresholds.
    • To determine if temporal modulation of gratings affects visual detection mechanisms.

    Main Methods:

    • A temporal forced-choice procedure was employed.
    • Sinusoidal gratings with spatial frequencies f and 3f were used.
    • Threshold versus masking contrast (tvc) functions were generated for steady (0 Hz) and modulated (5 Hz) gratings.

    Related Experiment Videos

    Main Results:

    • Temporal modulation frequency significantly altered the slopes of tvc functions.
    • Crossovers were observed between tvc functions for steady and flickering test gratings.
    • These changes indicate distinct visual processing pathways.

    Conclusions:

    • Steady and flickering visual patterns may be detected by separate visual mechanisms.
    • Temporal characteristics of stimuli play a critical role in visual perception.
    • Further research into visual mechanisms is warranted.