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

Spatial-frequency discrimination in cats.

R Blake, K Holopigian, H R Wilson

    Journal of the Optical Society of America. A, Optics and Image Science
    |September 1, 1986
    PubMed
    Summary
    This summary is machine-generated.

    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

    Clinical endpoints special session, ISCEV 2025, Utrecht.

    Documenta ophthalmologica. Advances in ophthalmology·2026
    Same author

    Is there a difference in pressures and forces under the roller with different pads when lunging horses with the Pessoa training aid?

    Journal of equine veterinary science·2026
    Same author

    Use of a spot-check protocol to measure ventricular response rate in dogs with atrial fibrillation.

    Journal of veterinary cardiology : the official journal of the European Society of Veterinary Cardiology·2025
    Same author

    Use of the subcostal view for obtaining aortic spectral Doppler-derived outflow velocities in cats.

    Journal of veterinary cardiology : the official journal of the European Society of Veterinary Cardiology·2025
    Same author

    Tight nosebands apply high pressures on the horses' face and alter stride kinematics.

    Journal of equine veterinary science·2025
    Same author

    The Spherical Tokamak for Energy Production: theme issue introduction.

    Philosophical transactions. Series A, Mathematical, physical, and engineering sciences·2024
    Same journal

    Phase retrieval with prior information.

    Journal of the Optical Society of America. A, Optics and image science·2008
    Same journal

    Clinical microscopy of the cornea utilizing optical sectioning and a high-numerical-aperture objective.

    Journal of the Optical Society of America. A, Optics and image science·1993
    Same journal

    Eye-tracking laser Doppler velocimeter stabilized in two dimensions: principle, design, and construction.

    Journal of the Optical Society of America. A, Optics and image science·1993
    Same journal

    Effects of aging in retinal image quality.

    Journal of the Optical Society of America. A, Optics and image science·1993
    Same journal

    Axial eye-length measurement by wavelength-shift interferometry.

    Journal of the Optical Society of America. A, Optics and image science·1993
    Same journal

    Fractal analysis of steady-state-flicker visual evoked potentials: feasibility.

    Journal of the Optical Society of America. A, Optics and image science·1993
    See all related articles

    Cats exhibit significantly poorer spatial-frequency discrimination than humans, with thresholds averaging 50% compared to humans

    Area of Science:

    • Vision science
    • Comparative psychology
    • Neuroscience

    Background:

    • The visual system's ability to perceive spatial frequencies is crucial for object recognition and navigation.
    • Understanding species-specific visual capabilities aids in comprehending ecological adaptations and evolutionary divergence.
    • Contrast sensitivity functions (CSFs) characterize the visual system's response to varying spatial frequencies.

    Purpose of the Study:

    • To compare spatial-frequency discrimination abilities between cats and humans.
    • To investigate the role of retinal sampling and neural mechanisms in visual perception.
    • To test a model predicting discrimination performance based on neural activity.

    Main Methods:

    • Two-alternative forced-choice procedure used to measure discrimination thresholds.

    Related Experiment Videos

  • Spatial frequencies tested were centered around the peak of the contrast-sensitivity function for each species.
  • Data collected from two cats and two human observers.

    • Main Results:

    • Human observers achieved an average spatial-frequency discrimination threshold of 4%.
    • Cats demonstrated significantly poorer performance, with an average threshold of 50%.
    • The difference in performance could not be solely attributed to variations in retinal photoreceptor spacing.

    Conclusions:

    • Cats exhibit a substantially lower spatial-frequency discrimination ability compared to humans.
    • A model incorporating the activity of the most sensitive neural mechanism provides a more accurate prediction of cat performance.
    • This suggests that neural processing, rather than just retinal sampling, plays a critical role in feline spatial vision.