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

Texture discrimination at different eccentricities.

J Saarinen, J Rovamo, V Virsu

    Journal of the Optical Society of America. A, Optics and Image Science
    |August 1, 1987
    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

    Rivaroxaban versus aspirin for secondary prevention of ischaemic stroke in patients with cancer: a subgroup analysis of the NAVIGATE ESUS randomized trial.

    European journal of neurology·2020
    Same author

    Randomized clinical trial comparing surgery, endovenous laser ablation and ultrasound-guided foam sclerotherapy for the treatment of great saphenous varicose veins.

    The British journal of surgery·2016
    Same author

    Rapid action in the Palaeogene, the relationship between phenotypic and taxonomic diversification in Coenozoic mammals.

    Proceedings. Biological sciences·2012
    Same author

    Asymmetric beam deflection by doubly grooved binary gratings.

    Applied optics·2010
    Same author

    High-efficiency diffractive waveguide lenses by parametric optimization.

    Applied optics·2010
    Same author

    Double-ion-exchange process in glass for the fabrication of computer-generated waveguide holograms.

    Applied optics·2010
    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

    Preattentive texture discrimination using second-order statistics is impaired in peripheral vision due to reduced visual acuity. Scaling textures by the cortical magnification factor equalizes neural representations, making discrimination independent of visual field location.

    Area of Science:

    • Vision Science
    • Neuroscience
    • Perception

    Background:

    • Preattentive visual processing allows for rapid analysis of scenes without conscious effort.
    • Texture discrimination relies on analyzing statistical properties of visual elements.
    • Visual acuity declines significantly from central to peripheral vision.

    Purpose of the Study:

    • To investigate how preattentive texture discrimination, based on second-order statistics, varies between central and peripheral vision.
    • To determine if texture discrimination performance can be equalized across the visual field by accounting for neural scaling.

    Main Methods:

    • Subjects discriminated between random dot textures with identical first-order but different second-order statistics.
    • Textures were presented at varying retinal eccentricities with and without scaling by the cortical magnification factor.

    Related Experiment Videos

  • Performance was measured by the ability to discriminate between textures.

    • Main Results:

    • Texture discrimination was accurate in central vision but deteriorated in peripheral vision for constant retinal sizes.
    • When textures were scaled by the cortical magnification factor, discrimination performance became independent of visual field location.
    • This suggests that the underlying neural processing for texture discrimination is consistent across eccentricities.

    Conclusions:

    • Preattentive texture discrimination based on second-order statistics is not inherently different between central and peripheral vision.
    • The observed differences are attributable to the decline in visual acuity with eccentricity.
    • Cortical magnification plays a crucial role in maintaining consistent visual processing across the visual field.