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

Orientation selectivity, preference, and continuity in monkey striate cortex.

G G Blasdel1

  • 1Department of Neurobiology, Harvard Medical School, Boston, Massachusetts 02115.

The Journal of Neuroscience : the Official Journal of the Society for Neuroscience
|August 1, 1992
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

Oriented axon projections in primary visual cortex of the monkey.

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

Wavelength-dependent differences between optically determined functional maps from macaque striate cortex.

NeuroImage·1998
Same author

Singularities in primate orientation maps.

Neural computation·1997
Same author

Relation between patterns of intrinsic lateral connectivity, ocular dominance, and cytochrome oxidase-reactive regions in macaque monkey striate cortex.

Cerebral cortex (New York, N.Y. : 1991)·1996
Same author

Neural pattern formation via a competitive Hebbian mechanism.

Behavioural brain research·1995
Same author

Geometry of orientation and ocular dominance columns in monkey striate cortex.

The Journal of neuroscience : the official journal of the Society for Neuroscience·1993
Same journal

Vestibular function drives gaze stability in locomoting macaques.

The Journal of neuroscience : the official journal of the Society for Neuroscience·2026
Same journal

Region- and layer-specific glutamatergic synapse development in the nascent cortical hierarchy.

The Journal of neuroscience : the official journal of the Society for Neuroscience·2026
Same journal

Endogenous peptide derived from c-Cbl-associated protein counteracts its inhibitory effect on enteric neural crest cell colonization in Hirschsprung disease.

The Journal of neuroscience : the official journal of the Society for Neuroscience·2026
Same journal

Drowsiness alters the neural dynamics but not the core computations of multisensory integration.

The Journal of neuroscience : the official journal of the Society for Neuroscience·2026
Same journal

A Matter of Parameters: Tailored Transcranial Focused Ultrasound Enhances Cortico-Thalamo-Cortical Circuit Resonance.

The Journal of neuroscience : the official journal of the Society for Neuroscience·2026
Same journal

Proactive visual and motor prioritization differentially scale with cue reliability.

The Journal of neuroscience : the official journal of the Society for Neuroscience·2026
See all related articles

Visual cortex maps reveal distinct organization schemes for orientation preference. Linear zones optimize orientation selectivity and binocularity, while singularities prioritize density, suggesting varied perceptual functions.

Area of Science:

  • Neuroscience
  • Visual Cortex Organization
  • Cortical Mapping

Background:

  • The visual cortex exhibits complex organization principles for processing visual information.
  • Orientation preference and selectivity are fundamental properties of neurons in the striate cortex.
  • Understanding the spatial arrangement of these properties is crucial for deciphering visual perception.

Purpose of the Study:

  • To investigate the spatial organization of orientation preference and selectivity in the mammalian visual cortex.
  • To identify and characterize the structural elements (linear zones and singularities) underlying this organization.
  • To explore the functional implications of these organizational schemes for visual processing.

Main Methods:

  • Analysis of differential images of orientation to infer maps of orientation preference and selectivity.

Related Experiment Videos

  • Identification of linear zones and discontinuities (fractures and singularities) within these maps.
  • Correlation of organizational features with ocular dominance columns and cytochrome oxidase-rich zones.

    • Main Results:

    • Discovery of linear zones (0.5-1.0 mm) with high orientation selectivity where preferred orientations rotate linearly.
    • Identification of discontinuities, including fractures and singularities, segregating these linear zones.
    • Singularities arise from continuous +/- 180-degree rotations of orientation preference, implying non-lateral direction organization.
    • Periodic interspersion of linear zones and singularities suggests dual organizational schemes optimized for linearity/selectivity and density.

    Conclusions:

    • The visual cortex employs at least two competing schemes for organizing orientation preferences: linearity/selectivity in zones and density near singularities.
    • Neurons in linear zones likely receive precise orientation information, supporting specific perceptual functions.
    • Neurons near singularities may receive coarse information about all orientations, suggesting broader perceptual roles.
    • This dual organization optimizes different aspects of visual processing within the striate cortex.