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

Non-monotonic changes in performance with eccentricity modeled by multiple eccentricity-dependent limitations.

Frédéric J A M Poirier1, Rick Gurnsey

  • 1Neurodynamics and Vision Lab--Centre for Vision Research, York University, Computer Sciences and Engineering Building, Room B0002E, 4700 Keele Street, Toronto, Ontario, Canada M3J 1P3. poirier@hpl.cvr.yorku.ca

Vision Research
|June 28, 2005
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

Head-Eye Coordination Increases with Age and Varies across Countries.

Optometry and vision science : official publication of the American Academy of Optometry·2015
Same author

Subjectively homogeneous noise over written text as a tool to investigate the perceptual mechanisms involved in reading.

Journal of vision·2013
Same author

Optimal faces for gender and expression: a new technique for measuring dynamic templates used in face perception.

Journal of vision·2012
Same author

Eccentricity dependence of the curveball illusion.

Canadian journal of experimental psychology = Revue canadienne de psychologie experimentale·2012
Same author

Clouds are not normal occluders, and other oddities: more interactions between textures and lightness illusions.

Journal of vision·2012
Same author

Why do shape aftereffects increase with eccentricity?

Journal of vision·2011

Non-monotonic performance in vision tasks arises from multiple resolution loss constraints. Multiple-scaling theory explains these eccentric visual performance variations by considering varying rates of receptive field expansion.

Area of Science:

  • Visual neuroscience
  • Perception psychology
  • Computational vision

Background:

  • Visual resolution decreases with eccentricity (distance from the center of vision).
  • Stimulus scaling is used in experiments to compensate for these resolution losses.
  • Unscaled or inconsistently scaled stimuli can lead to non-monotonic performance changes.

Purpose of the Study:

  • To explain non-monotonic performance changes observed in psychophysical experiments.
  • To propose a unified framework, multiple-scaling theory, to account for these variations.
  • To demonstrate how this theory applies to various visual tasks and phenomena.

Main Methods:

  • Analyzed existing psychophysical data on grating acuity and peripheral vision.
  • Extended current methods for investigating peripheral perception.

Related Experiment Videos

  • Modeled performance based on the assumption of multiple eccentricity-dependent constraints.

    • Main Results:

    • Showed how measured scaling can deviate from linearity with eccentricity in grating acuity.
    • Explained the central performance drop and reverse scaling in symmetry detection.
    • Demonstrated that non-monotonic performance is consistent with multiple linear resolution loss sources.

    Conclusions:

    • Most eccentricity-related visual performance variations, including exceptions, are explained by multiple-scaling theory.
    • Receptive field properties of underlying visual mechanisms expand with eccentricity at potentially different rates.
    • This provides a unified explanation for diverse findings in eccentricity research.