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

Half-field sinusoidally modulated light stimulation at subject's alpha frequency.

K Shinosaki1, T Inouye, S Ukai

  • 1Department of Neuropsychiatry, Osaka University Medical School, Japan.

Electroencephalography and Clinical Neurophysiology
|December 1, 1992
PubMed
Summary

Sinusoidally modulated light (SML) stimulation reveals that alpha activity responses are greater in the ipsilateral occipital area. This suggests selective hemispheric influence of visual field stimulation on brain activity.

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

Metabolic Syndrome and Cognitive Function: Cross-Sectional Study on Community-Dwelling Non-Demented Older Adults in Japan.

The journal of nutrition, health & aging·2020
Same author

Three-dimensional characterization of ODS ferritic steel using by FIB-SEM serial sectioning method.

Microscopy (Oxford, England)·2014
Same author

VEGF-dependent continuous angiogenesis in the median eminence of adult mice.

The European journal of neuroscience·2012
Same author

Right parietal activation during delusional state in episodic interictal psychosis of epilepsy: a report of two cases.

Epilepsy & behavior : E&B·2006
Same author

Wavelet-crosscorrelation analysis: Non-stationary analysis of neurophysiological signals.

Brain topography·2005
Same author

SAM(g2) analysis for detecting spike localization: a comparison with clinical symptoms and ECD analysis in an epileptic patient.

Neurology & clinical neurophysiology : NCN·2005

Area of Science:

  • Neuroscience
  • Visual Neuroscience
  • Brain Activity

Background:

  • Alpha activity is a key indicator of brain states.
  • Understanding hemispheric processing is crucial for cognitive science.
  • Sinusoidally modulated light (SML) offers a precise method for studying neural responses.

Purpose of the Study:

  • To investigate interhemispheric alpha activity responses using SML.
  • To determine the effect of visual half-field stimulation on alpha power.
  • To analyze hemispheric lateralization of visual processing.

Main Methods:

  • Used half-field and full-field SML stimulation at alpha frequency.
  • Recorded electroencephalogram (EEG) at occipital areas (O1 and O2).
  • Analyzed power spectrum, phase difference, and coherence, calculating a laterality index.

Related Experiment Videos

Main Results:

  • Laterality index showed greater alpha response in the ipsilateral hemisphere for half-field stimulation.
  • Full-field stimulation resulted in lateralization between left and right half-field responses.
  • Significant differences in laterality index were observed across stimulation conditions.

Conclusions:

  • Half-field SML stimulation selectively impacts alpha activity in the ipsilateral hemisphere.
  • Visual field stimulation demonstrates distinct hemispheric distributions of alpha activity.
  • Findings contribute to understanding visual processing lateralization in the human brain.