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

Suprathreshold processing of complex visual stimuli: evidence for linearity in contrast perception

A P Ginsburg, M W Cannon, M A Nelson

    Science (New York, N.Y.)
    |May 9, 1980
    PubMed
    Summary

    Perceived visual contrast is linear with stimulus contrast for sine and square waves. This suggests linear processing in the visual system for suprathreshold contrast information.

    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

    A New Realization of SI for Organic Chemical Measurement: NIST PS1 Primary Standard for Quantitative NMR (Benzoic Acid).

    Analytical chemistry·2018
    Same author

    The Effect of Urine Concentration and pH on the Growth of Escherichia Coli in Canine Urine In Vitro.

    Journal of veterinary internal medicine·2018
    Same author

    Assessment of nutrient supplement to reduce gentamicin-induced ototoxicity.

    Journal of the Association for Research in Otolaryngology : JARO·2014
    Same author

    Backward stimulated Raman scattering in multimode fiber.

    Applied optics·2010
    Same author

    Optical sampling transient analyzer system.

    Applied optics·2010
    Same author

    Pulsed Neon Laser with 350-psec Pulse Duration and Subnanosecond Jitter at 6143 A.

    Applied optics·2010

    Area of Science:

    • Visual perception
    • Neuroscience
    • Image processing

    Background:

    • Understanding visual processing of contrast is crucial for fields like visual neuroscience and image display technology.
    • Previous research has explored contrast perception, but linearity in suprathreshold processing requires further elucidation.

    Purpose of the Study:

    • To investigate the relationship between stimulus contrast and perceived contrast for different waveform types.
    • To determine the linearity of suprathreshold visual processing for contrast.

    Main Methods:

    • Magnitude estimation experiments were conducted using sine and square wave stimuli.
    • Contrast matching experiments were used to verify findings from magnitude estimation.

    Main Results:

    Related Experiment Videos

    • Perceived contrast was found to be a linear function of stimulus contrast for both sine and square waves.
    • The sine:square ratio for equal perceived contrast was determined and validated.

    Conclusions:

    • Suprathreshold visual processing of contrast exhibits a high degree of linearity.
    • These findings contribute to a fundamental understanding of how the human visual system processes contrast information.