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

Selectivity for polar, hyperbolic, and Cartesian gratings in macaque visual cortex

J L Gallant1, J Braun, D C Van Essen

  • 1Division of Biology, California Institute of Technology, Pasadena 91125.

Science (New York, N.Y.)
|January 1, 1993
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

Interoperable atlases of the human brain.

NeuroImage·2014
Same author

A weighted and directed interareal connectivity matrix for macaque cerebral cortex.

Cerebral cortex (New York, N.Y. : 1991)·2012
Same author

The Human Connectome Project: a data acquisition perspective.

NeuroImage·2012
Same author

The future of the human connectome.

NeuroImage·2012
Same author

Weight consistency specifies regularities of macaque cortical networks.

Cerebral cortex (New York, N.Y. : 1991)·2010
Same author

Functional specializations in human cerebral cortex analyzed using the visible man surface-based atlas.

Human brain mapping·2010

Researchers studied visual neuroscience by recording single-cell responses in macaque monkey area V4. Many cells showed preference for non-Cartesian gratings, suggesting a role in pattern recognition and surface shape representation.

Area of Science:

  • Visual neuroscience
  • Neural basis of pattern recognition
  • Primate vision

Background:

  • Understanding how the brain processes visual information is crucial.
  • Area V4 in macaque monkeys is known for its role in visual processing.
  • Previous research has focused on responses to simple stimuli like sinusoidal gratings.

Purpose of the Study:

  • To investigate neural responses in area V4 to different classes of periodic stimuli.
  • To determine if non-Cartesian stimuli elicit distinct neural responses compared to Cartesian stimuli.
  • To explore the potential role of these responses in pattern recognition and surface shape representation.

Main Methods:

  • Single-cell electrophysiological recordings were performed in area V4 of macaque monkeys.

Related Experiment Videos

  • Stimuli included polar (concentric and radial), hyperbolic, and Cartesian gratings.
  • Cellular responses were analyzed for significant preferences among stimulus types.

    • Main Results:

    • 16% of recorded cells showed significantly greater responses to non-Cartesian (polar or hyperbolic) gratings compared to Cartesian gratings.
    • 8% of cells showed a significant preference for Cartesian gratings.
    • Among cells selective for non-Cartesian gratings, concentric gratings were most preferred.

    Conclusions:

    • Area V4 neurons exhibit differential responses to various grating types, including non-Cartesian stimuli.
    • Cells selective for non-Cartesian gratings may play a key role in intermediate pattern recognition.
    • These findings contribute to understanding the neural representation of surface shape.