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

Visual stimulus-dependent changes in interhemispheric EEG coherence in humans.

M G Knyazeva1, D C Kiper, V Y Vildavski

  • 1Research Institute of Developmental Physiology, 119121 Pogodinskaya 8-2, Moscow, Russia.

Journal of Neurophysiology
|December 22, 1999
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

Search for Light Pseudoscalar Bosons, Pair-Produced in Higgs Boson Decays in the Four-Electron Final State in Proton-Proton Collisions at sqrt[s]=13  TeV.

Physical review letters·2026
Same author

Observation of Suppressed Charged-Particle Production in Ultrarelativistic Oxygen-Oxygen Collisions.

Physical review letters·2026
Same author

Observation of tWZ Production at the CMS Experiment.

Physical review letters·2026
Same author

First Exclusive Reconstruction of the B^{*+}, B^{*0}, and B_{s}^{*0} Mesons and Precise Measurement of Their Masses.

Physical review letters·2026
Same author

Simultaneous Probe of the Charm and Bottom Quark Yukawa Couplings Using tt[over ¯]H Events.

Physical review letters·2026
Same author

Measurement of WWZ and ZH Production Cross Sections at sqrt[s]=13 and 13.6 TeV.

Physical review letters·2025
Same journal

Targeting intracranial electrical stimulation to network regions defined within individuals causes network-level effects.

Journal of neurophysiology·2026
Same journal

When "Noise" Isn't Simply Noise: Deterministic Postural Drive During Noisy Galvanic Vestibular Stimulation (nGVS).

Journal of neurophysiology·2026
Same journal

Abrupt Scene Onsets and Gradually Emerging Scene Information Produce Distinct EEG Decoding Dynamics.

Journal of neurophysiology·2026
Same journal

From discovery to translation: charting a course for the <i>Journal of Neurophysiology</i>.

Journal of neurophysiology·2026
Same journal

Neuromodulatory Strategies Overcome Multiple Inevitable Impairments of Cerebral Palsy.

Journal of neurophysiology·2026
Same journal

Acute Fentanyl Toxicity:From Opioid-Induced to Hypoxia-Mediated Pathophysiology.

Journal of neurophysiology·2026
See all related articles

Visual stimuli crossing the vertical meridian significantly increased electroencephalographic (EEG) interhemispheric coherence (ICoh) in humans, particularly in the gamma band. This suggests top-down regulation of callosal activation in conscious individuals.

Area of Science:

  • Neuroscience
  • Cognitive Science
  • Human Brain Imaging

Background:

  • Interhemispheric coherence (ICoh) reflects communication between brain hemispheres.
  • Mammalian studies suggest callosal connectivity is crucial for visual processing.
  • Previous research indicated specific visual stimuli could modulate ICoh in animals.

Purpose of the Study:

  • To investigate the effect of visual stimuli on electroencephalographic (EEG) interhemispheric coherence (ICoh) in humans.
  • To compare human responses to animal models regarding visual callosal connectivity.
  • To explore potential top-down regulatory influences on human interhemispheric synchronization.

Main Methods:

  • Recorded EEG signals from 9 human subjects viewing visual stimuli.

Related Experiment Videos

  • Analyzed interhemispheric coherence (ICoh) in the gamma frequency band.
  • Utilized various visual stimuli, including gratings positioned across the vertical meridian.

    • Main Results:

    • A single grating extending across the vertical meridian significantly increased EEG ICoh.
    • Increased ICoh was observed in occipital and parietal regions, specifically in the gamma band.
    • Unilateral or bilateral stimuli ineffective in animals did not affect human ICoh, suggesting regulatory influences.

    Conclusions:

    • EEG coherence analysis is a valid method for assessing cortico-cortical connectivity.
    • Visual stimuli can synchronize human brain activity, particularly in the gamma band, via cortico-cortical connections.
    • Human visual callosal connections show similarities to those in animals, but with potential top-down regulation in conscious states.