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

Ocular dominance and disparity coding in cat visual cortex.

S LeVay1, T Voigt

  • 1Robert Bosch Vision Research Center, Salk Institute for Biological Studies, San Diego, CA 92138.

Visual Neuroscience
|January 1, 1988
PubMed
Summary

This study reveals that visual cortex cells exhibit a continuum of binocular disparity tuning, challenging strict categorization. Ocular dominance and best disparity show relationships, suggesting visual pathway geometry influences depth perception.

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

Alteration of Endothelin 1, MCP-1 and Chromogranin A in patients with atrial fibrillation undergoing pulmonary vein isolation.

PloS one·2017
Same author

[Chronic low back pain and psychological comorbidity : A review].

Schmerz (Berlin, Germany)·2016
Same author

Patient-individual local SAR determination: in vivo measurements and numerical validation.

Magnetic resonance in medicine·2012
Same author

Regulation of early spontaneous network activity and GABAergic neurons development by thyroid hormone.

Neuroscience·2010
Same author

Accessory muscle in the hypothenar region: a functional approach.

Annals of anatomy = Anatomischer Anzeiger : official organ of the Anatomische Gesellschaft·2005
Same author

Synchronous oscillatory activity in immature cortical network is driven by GABAergic preplate neurons.

The Journal of neuroscience : the official journal of the Society for Neuroscience·2001

Area of Science:

  • Neuroscience
  • Visual Neuroscience
  • Computational Neuroscience

Background:

  • Understanding visual processing, particularly depth perception, is crucial for comprehending brain function.
  • Previous research has categorized visual cortex cells based on their responses to binocular disparity, but these categories may be too rigid.

Purpose of the Study:

  • To quantitatively analyze the orientation selectivity, ocular dominance, and binocular disparity tuning of cells in cat visual areas 17 and 18.
  • To investigate the relationships between these visual properties and explore whether cell responses form a continuum.

Main Methods:

  • Automated, quantitative techniques were used to record from 272 cells in anesthetized, paralyzed cats.
  • Binocular disparity was systematically varied, and cell responses were measured to determine sensitivity, best disparity, and tuning curve characteristics.

Related Experiment Videos

  • Binocular correspondence was established using a reference electrode in the lateral geniculate nucleus.

    • Main Results:

    • Cells exhibited a wide range of disparity tuning, with many showing intermediate or unclassifiable patterns, suggesting a continuum rather than discrete categories.
    • No correlation was found between a cell's best orientation and its ocular dominance or disparity tuning.
    • Ocular dominance and best disparity were related: cells near the fixation plane had balanced ocularity, while those with near/far disparities showed varied ocular dominance.
    • Cells preferring far disparities were often contralateral-eye dominant, and those preferring near disparities were ipsilateral-eye dominant, particularly near the vertical meridian.

    Conclusions:

    • Visual cortex cells likely represent a continuum of disparity tuning, challenging previous discrete classifications.
    • The observed relationship between ocular dominance and best disparity supports the influence of visual pathway geometry and decussation patterns.
    • Columnar organization for ocular dominance may contribute to the observed grouping of cells with similar best disparities.