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

Do the global advantage and interference effects covary?

G Amirkhiabani1, W J Lovegrove

  • 1Faculty of Arts, Health and Science, Central Queensland University, Rockhampton, Australia. a.keen@cqu.edu.au

Perception & Psychophysics
|November 26, 1999
PubMed
Summary

The global precedence hypothesis suggests faster processing of global image features (global advantage) and interference from global processing on local features (global interference). This study found that while global advantage is consistent, global interference varies with visual field eccentricity.

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

Transient deficit hypothesis and dyslexia: examination of whole-parts relationship, retinal sensitivity, and spatial and temporal frequencies.

Vision research·2000
Same author

Relative size of global visual stimulus: advantage and interference.

Perceptual and motor skills·1998
Same author

Visual and language processing deficits are concurrent in dyslexia.

Cortex; a journal devoted to the study of the nervous system and behavior·1993
Same author

Still no evidence for a photoreceptor-level abnormality in dyslexia.

Perceptual and motor skills·1992
Same author

Visual processing deficits in dyslexia: receptors or neural mechanisms?

Perceptual and motor skills·1992
Same author

Metacontrast with masks varying in spatial frequency and wavelength.

Vision research·1991

Area of Science:

  • Cognitive Psychology
  • Visual Perception
  • Neuroscience

Background:

  • The global precedence hypothesis posits faster processing of global over local image properties (global advantage) and interference effects.
  • Previous research shows conflicting results regarding the association and dissociation of global advantage and interference.
  • Discrepancies may stem from not controlling for the eccentricity of global and local visual properties.

Purpose of the Study:

  • To investigate the relationship between global advantage and global interference.
  • To examine the role of visual field eccentricity in global interference.
  • To clarify the global precedence hypothesis by equalizing stimulus eccentricities.

Main Methods:

  • Utilized stimuli with elements along their perimeters to equalize global and local property eccentricities.

Related Experiment Videos

  • Conducted two experiments to assess global advantage and global interference across central and peripheral visual field locations.
  • Manipulated the consistency between global and local levels and analyzed processing speeds.

    • Main Results:

    • Demonstrated a consistent global advantage across central and peripheral visual fields.
    • Observed that global interference patterns varied significantly with visual field location.
    • Found that consistency between global and local levels differentially affected local processing speed based on eccentricity.

    Conclusions:

    • The global precedence hypothesis's interference component is modulated by visual field eccentricity.
    • Eccentricity, not the size of global/local levels, is the primary determinant of variations in global interference patterns.
    • Equalizing eccentricities provides a clearer understanding of the spatial dynamics of visual processing levels.