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

Deficits to global motion processing in human amblyopia.

Anita J Simmers1, Tim Ledgeway, Robert F Hess

  • 1The Institute of Ophthalmology, University College London, EC1V 9EL, London, UK. a.simmers@ucl.ac.uk

Vision Research
|February 27, 2003
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

The amblyopic acuity deficit: Identification of letters distorted by spatial scrambling algorithms.

Vision research·2026
Same author

Development of a novel dichoptic reading tool to improve vision in amblyopia.

Vision research·2026
Same author

Dynamic Stereopsis Is Abnormal in Treated Anisometropic Amblyopia.

Investigative ophthalmology & visual science·2025
Same author

The Effect of Contrast Reversal on Peripheral Visual Acuity.

Translational vision science & technology·2025
Same author

Measuring residual visual function after cerebral damage - a potential path for optimising rehabilitation approaches.

Progress in brain research·2025
Same author

Monocular eye-cueing shifts eye balance in amblyopia.

Journal of vision·2025
Same journal

Computational and mathematical models in vision: Quantitative approaches to understanding visual perception.

Vision research·2026
Same journal

Complex interactions between lightness, chroma, and hue in color ensemble perception.

Vision research·2026
Same journal

Driving with autism spectrum disorder: Exploring the impact of tactile hazard warnings on gaze behavior and hazard responses.

Vision research·2026
Same journal

Early visual processing in adults with ADHD: evidence from contrast sensitivity, spatial integration, and external noise.

Vision research·2026
Same journal

Pupil reflexes generate the peripheral drift illusion due to ON/OFF motion responses.

Vision research·2026
Same journal

Perceived direction of glass patterns can flip by 90°: A neural model.

Vision research·2026
See all related articles

Adult amblyopia (lazy eye) shows independent global motion processing deficits unrelated to contrast sensitivity. These visual processing issues are more pronounced for contrast-defined stimuli, suggesting extra-striate cortex involvement.

Area of Science:

  • Neuroscience
  • Vision Science
  • Ophthalmology

Background:

  • Amblyopia, or lazy eye, is a developmental disorder affecting visual acuity.
  • Existing research highlights contrast sensitivity deficits in amblyopia.
  • Global motion processing is crucial for visual perception and navigation.

Purpose of the Study:

  • To investigate global motion processing in adult amblyopes.
  • To differentiate motion processing deficits from contrast sensitivity deficits.
  • To identify the neural substrates underlying these deficits.

Main Methods:

  • Utilized a novel method to isolate global motion perception.
  • Controlled for contrast sensitivity variations in adult amblyopic participants.
  • Compared performance with contrast-defined and luminance-defined visual stimuli.

Related Experiment Videos

Main Results:

  • Confirmed independent global motion processing deficits in amblyopia.
  • Demonstrated that these deficits are not solely due to reduced contrast sensitivity.
  • Observed more extensive deficits for contrast-defined stimuli compared to luminance-defined stimuli.

Conclusions:

  • Global motion processing deficits in amblyopia are distinct from contrast sensitivity impairments.
  • These deficits likely involve extra-striate cortical areas, particularly the dorsal visual pathway.
  • Findings suggest potential targets for future amblyopia treatments focused on visual pathway rehabilitation.