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

A theory of the primitive spatial code in human vision.

R J Watt, M J Morgan

    Vision Research
    |January 1, 1985
    PubMed
    Summary

    A new theory, MIRAGE, explains how the human visual system codes luminance changes using redundant signals from multiple spatial filters. This model successfully demonstrates brightness illusions and grouping principles, supported by psychophysical data.

    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

    Factors limiting quantitative phase retrieval in atomic-resolution differential phase contrast scanning transmission electron microscopy using a segmented detector.

    Ultramicroscopy·2022
    Same author

    Lagged recovery of fish spatial distributions following a cold-water perturbation.

    Scientific reports·2021
    Same author

    Suppressing dynamical diffraction artefacts in differential phase contrast scanning transmission electron microscopy of long-range electromagnetic fields via precession.

    Ultramicroscopy·2020
    Same author

    High contrast at low dose using a single, defocussed transmission electron micrograph.

    Micron (Oxford, England : 1993)·2019
    Same author

    Robotic vs. laparoscopic ventral mesh rectopexy for external rectal prolapse and rectal intussusception: a systematic review.

    Techniques in coloproctology·2019
    Same author

    Simple Wave-Optical Superpositions as Prime Number Sieves.

    Physical review letters·2019

    Area of Science:

    • Visual neuroscience
    • Computational modeling
    • Human visual perception

    Background:

    • Characterizing spatial luminance changes in the human visual system presents practical challenges.
    • Existing models often assume independent analysis of spatial filters, which may not reflect biological reality.

    Purpose of the Study:

    • To develop a novel theoretical framework, MIRAGE (primitive coding of spatial luminance changes).
    • To explain the functional role of spatial filters in human vision.
    • To account for visual phenomena like brightness illusions and grouping principles.

    Main Methods:

    • Theoretical development of the MIRAGE model based on the redundancy of signals from multiple spatial filters.
    • Application of the MIRAGE theory to one-dimensional luminance patterns.
    • Comparison of model predictions with established psychophysical data.

    Main Results:

    • MIRAGE posits that spatial filters primarily transmit a broad, redundant signal, rather than precisely coded frequency information.
    • The theory successfully predicts several well-known brightness illusions.
    • A structured grouping principle emerges from the MIRAGE model.

    Conclusions:

    • The MIRAGE theory offers a parsimonious explanation for the primitive coding of spatial luminance changes.
    • The model's ability to explain illusions and grouping suggests a unified principle in visual processing.
    • The theory is robustly supported by a wide range of psychophysical evidence.

    Related Experiment Videos