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

Metabolic activity patterns in the monkey visual cortex as revealed by spectral analysis.

Y Dalezios1, G G Gregoriou, H E Savaki

  • 1Department of Basic Sciences, Faculty of Medicine, University of Crete, Heraklion, Greece.

Journal of Cerebral Blood Flow and Metabolism : Official Journal of the International Society of Cerebral Blood Flow and Metabolism
|April 10, 1999
PubMed
Summary

This study maps monkey visual cortex metabolic activity using [14C]-2-deoxyglucose. Enhanced organization of metabolic bands in areas V1 and V2 was observed in experimental subjects during a visually guided task.

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

Eye position modulates the electromyographic responses of neck muscles to electrical stimulation of the superior colliculus in the alert cat.

Experimental brain research·2006
Same author

The local loop of the saccadic system closes downstream of the superior colliculus.

Neuroscience·2006
Same author

Functional imaging of the intraparietal cortex during saccades to visual and memorized targets.

NeuroImage·2006
Same author

Frontal cortical areas of the monkey brain engaged in reaching behavior: a (14)C-deoxyglucose imaging study.

NeuroImage·2005
Same author

Oculomotor areas of the primate frontal lobes: a transneuronal transfer of rabies virus and [14C]-2-deoxyglucose functional imaging study.

The Journal of neuroscience : the official journal of the Society for Neuroscience·2004
Same author

Functional imaging of the primate superior colliculus during saccades to visual targets.

Nature neuroscience·2001

Area of Science:

  • Neuroscience
  • Systems Neuroscience
  • Visual Neuroscience

Background:

  • The monkey visual cortex exhibits complex metabolic activity patterns.
  • Understanding these patterns is crucial for deciphering visual processing.
  • Previous studies have indicated columnar organization in visual areas.

Purpose of the Study:

  • To quantitatively map metabolic activity in monkey visual cortex (areas V1 and V2) during a visually guided reaching task.
  • To analyze the spatial organization of metabolic activity bands using spectral analysis.
  • To investigate the emergence of organized columnar structures from background activity.

Main Methods:

  • Quantitative mapping of metabolic activity using [14C]-2-deoxyglucose.
  • Bandpass filtering of reconstructed two-dimensional metabolic maps.

Related Experiment Videos

  • Two-dimensional spectral analysis to study the spatial arrangement of active bands.

    • Main Results:

    • Alternating bands of high and low metabolic activity were observed in areas V1 and V2.
    • Metabolic bands were significantly more organized in experimental hemispheres compared to controls.
    • Area V1 showed more complex spectral amplitudes in controls, while experimental subjects exhibited sharp spectra with constant periodicity in V2.

    Conclusions:

    • A well-organized columnar arrangement in areas V1 and V2 of experimental hemispheres emerges from a diffusely organized background network.
    • Layer IV of area V1 suggests the coexistence of multiple active columnar systems.
    • The findings highlight the dynamic nature of metabolic activity and columnar organization in the visual cortex.