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

Two-pulse monocular and binocular interactions at the differential luminance threshold.

A I Cogan1, M Clarke, H Chan

  • 1Smith-Kettlewell Eye Research Institute, San Francisco, CA 94115.

Vision Research
|January 1, 1990
PubMed
Summary

Binocular vision interaction differs between eyes. Opposite-polarity stimuli don't cancel, but same-polarity stimuli facilitate, suggesting rectified neural responses drive visual processing.

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

Binocular disparity processing with opposite-contrast stimuli.

Perception·1995
Same author

Vision comes to mind.

Perception·1995
Same author

Depth in anticorrelated stereograms: effects of spatial density and interocular delay.

Vision research·1993
Same author

Mitomycin C and vindesine: an ineffective combination chemotherapy in the treatment of malignant pleural mesothelioma.

Tumori·1992
Same author

Neoadjuvant chemotherapy with cisplatin, epirubicin and VP-16 for stage IIIA-IIIB non-small-cell lung cancer: a pilot study.

Tumori·1992
Same author

Supraspinal influences on recurrent inhibition in humans. Paralysis of descending control of Renshaw cells in patients with mental retardation.

Electroencephalography and clinical neurophysiology·1992

Area of Science:

  • Visual Neuroscience
  • Psychophysics
  • Ophthalmology

Background:

  • Previous research established linear interaction followed by rectification for monocular luminance stimuli.
  • Binocular interaction in the contrast domain shows different patterns than luminance interaction.

Purpose of the Study:

  • To investigate luminance pulse interaction at the differential threshold for both monocular and binocular presentations.
  • To elucidate the mechanisms underlying binocular summation and cancellation based on stimulus polarity and interocular delay.

Main Methods:

  • Studied interaction of two luminance pulses at threshold.
  • Presented stimuli to the same eye (monocular) and opposite eyes (binocular) with varying interocular delays.
  • Analyzed responses based on stimulus polarity (same or opposite signs) and stimulus onset asynchrony (SOA).

Related Experiment Videos

Main Results:

  • Monocular results confirmed linear interaction and rectification around 50-60 msec.
  • Binocular stimuli of opposite polarity did not cancel.
  • Binocular facilitation occurred with same-sign stimuli (SOA < 15 msec) or opposite-sign stimuli (15-100 msec SOA).

Conclusions:

  • Binocular interaction involves rectified internal effects of luminance pulses.
  • Facilitation arises from fused responses of same-sign, half-wave rectified inputs.
  • Lack of cancellation for opposite-sign stimuli is due to an 'either-eye' process with full-wave rectified inputs.