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

Electrophysiological correlates of human intrasaccadic processing.

E Anagnostou1, R Kleiser, W Skrandies

  • 1Institute of Physiology, School of Medicine, Justus-Liebig University, Giessen, Germany.

Experimental Brain Research
|February 15, 2000
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

What influence do face masks have on reading emotions in faces?

Neuroimage. Reports·2025
Same author

Investigating heterogeneity across autism, ADHD, and typical development using measures of cortical thickness, surface area, cortical/subcortical volume, and structural covariance.

Frontiers in child and adolescent psychiatry·2025
Same author

Large-scale analysis of structural brain asymmetries during neurodevelopment: Associations with age and sex in 4265 children and adolescents.

Human brain mapping·2024
Same author

Publisher Correction: Brain charts for the human lifespan.

Nature·2022
Same author

Slow stepping rate in the Unterberger test in persistent postural-perceptual dizziness.

Journal of neurology·2022
Same author

Brain charts for the human lifespan.

Nature·2022

Visual discrimination remains high during saccades, challenging theories of suppression. Cortical activity changes significantly during eye movements, suggesting complex neural interactions influence visual processing.

Area of Science:

  • Neuroscience
  • Cognitive Science
  • Visual Perception

Background:

  • Saccadic suppression is theorized to maintain spatial constancy by reducing visual input during eye movements.
  • However, visual inhibition may not always occur, indicating more complex mechanisms at play.

Purpose of the Study:

  • To investigate visual discrimination performance and cortical activity during saccadic eye movements.
  • To explore the neural basis of visual processing alterations during saccades.

Main Methods:

  • 20 healthy subjects performed visually guided horizontal saccades while discrimination ability was tested.
  • Simultaneous electroencephalography (EEG) and electrooculogram (EOG) recorded brain activity and eye movements.
  • Visual stimuli were presented briefly and masked to prevent afterimages; a control condition used stationary eyes.

Related Experiment Videos

Main Results:

  • Discrimination performance during saccades was only slightly reduced and remained high, showing no strong saccadic suppression with supra-threshold stimuli.
  • Cortical activation patterns significantly differed during saccades compared to stationary conditions.
  • Specifically, global field power was reduced, and scalp topography altered around 130 ms latency during saccades.

Conclusions:

  • The findings suggest that strong saccadic suppression is not consistently observed with supra-threshold stimuli.
  • Altered cortical activation patterns during saccades may result from interactions between efference copy signals and visual afferent input.
  • This highlights a complex interplay between oculomotor commands and visual processing.