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

Reciprocal interactions between occlusion and motion computations

B L Anderson1, P Sinha

  • 1Massachusetts Institute of Technology, Cambridge 02139, USA.

Proceedings of the National Academy of Sciences of the United States of America
|April 1, 1997
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

Mid-upper arm circumference predicts treatment outcomes in paediatric TB: a cohort study.

IJTLD open·2026
Same author

Observation of Charmonium Sequential Suppression in Heavy-Ion Collisions at the Relativistic Heavy Ion Collider.

Physical review letters·2026
Same author

Impact of indoor ventilation on TB transmission risk: implications of climate change.

The international journal of tuberculosis and lung disease : the official journal of the International Union against Tuberculosis and Lung Disease·2026
Same author

Nutritional interventions for TB: a critical component of integrated TB care amid funding challenges.

The international journal of tuberculosis and lung disease : the official journal of the International Union against Tuberculosis and Lung Disease·2026
Same author

Low TB1 and TB2 antigen-nil is associated with increased QuantiFERON Gold Plus reversions.

The international journal of tuberculosis and lung disease : the official journal of the International Union against Tuberculosis and Lung Disease·2026
Same author

Energy Independence of the Collins Asymmetry in p^{↑}p Collisions.

Physical review letters·2026
Same journal

The TaMYB55-TaSnRK1α1-TabZIP9 module confers heat stress tolerance in wheat.

Proceedings of the National Academy of Sciences of the United States of America·2026
Same journal

Superstatistics approach to turbulent circulation fluctuations.

Proceedings of the National Academy of Sciences of the United States of America·2026
Same journal

A molecular timescale for evolution of cobamide biosynthesis.

Proceedings of the National Academy of Sciences of the United States of America·2026
Same journal

Pierre Chambon, a pioneer of molecular biology and gene regulation in eukaryotes.

Proceedings of the National Academy of Sciences of the United States of America·2026
Same journal

Granulosa cell glycogen fuels the avascular corpus luteum.

Proceedings of the National Academy of Sciences of the United States of America·2026
Same journal

Synthetic essentiality of TRAIL/TNFSF10 in VHL-deficient renal cell carcinoma.

Proceedings of the National Academy of Sciences of the United States of America·2026
See all related articles

The visual system resolves the aperture problem by distinguishing between receptive field boundaries and occluding edges. This allows for accurate motion perception and illusory surface generation.

Area of Science:

  • Neuroscience
  • Computational Vision
  • Visual Perception

Background:

  • The aperture problem describes motion ambiguity for untextured contours within limited visual fields.
  • Neurons in V1 and MT are susceptible due to their receptive field limitations.
  • Previous studies assumed simulated apertures mimic receptive field constraints.

Purpose of the Study:

  • To challenge the assumption that simulated apertures accurately model the aperture problem in biological receptive fields.
  • To investigate the distinct computational roles of contour terminators in receptive fields versus simulated apertures.
  • To explore interactions between occlusion and motion processing in the visual system.

Main Methods:

  • Psychophysical experiments presenting moving contours behind simulated apertures.

Related Experiment Videos

  • Analysis of how contour terminators are interpreted in different aperture conditions.
  • Investigating reciprocal interactions between occlusion and motion computations.

    • Main Results:

    • A fundamental computational difference exists in how contour terminators are interpreted.
    • When an aperture is a receptive field, terminators define its boundaries, not contour ends.
    • Simulated apertures generate terminators from occluding edges, leading to distinct visual processing.
    • Reciprocal interactions between occlusion and motion computations were observed.

    Conclusions:

    • The visual system differentiates between receptive field boundaries and occluding edges to solve the aperture problem.
    • Moving contours are decomposed into segments and unpaired terminators.
    • Accretion and deletion of contours behind occluding edges contribute to coherent motion and illusory surfaces.