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

Extraretinal control of saccadic suppression.

M R Diamond1, J Ross, M C Morrone

  • 1Department of Psychology, The University of WA, Nedlands Western Australia 6907, Australia.

The Journal of Neuroscience : the Official Journal of the Society for Neuroscience
|April 25, 2000
PubMed
Summary

Saccadic suppression, a visual phenomenon during eye movements, has both retinal and extraretinal components. This study reveals that extraretinal signals significantly contribute to visual processing during saccades.

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

Myocardial cell hypertrophy after myocardial infarction with reperfusion in dogs.

Circulation·1992
Same author

Disappearance of Q waves following thrombolysis for acute myocardial infarction.

The Canadian journal of cardiology·1992
Same author

Myxomatosis: population dynamics of rabbits (Oryctolagus cuniculus Linnaeus, 1758) and ecological effects in the United Kingdom.

Revue scientifique et technique (International Office of Epizootics)·1992
Same author

Identification of complex formation between two intracellular tyrosine kinase substrates: human c-Rel and the p105 precursor of p50 NF-kappa B.

Oncogene·1992
Same author

Improved processes for the production and isolation of dynemicin A and large-scale fermentation in a 10,000-liter fermentor.

Journal of industrial microbiology·1992
Same author

The effect of postural drainage positioning on ventilation homogeneity in healthy subjects.

Physical therapy·1992

Area of Science:

  • Neuroscience
  • Visual Perception
  • Ophthalmology

Background:

  • Saccadic suppression is a brief period of reduced visual sensitivity during rapid eye movements (saccades).
  • The precise mechanisms underlying saccadic suppression, particularly the contribution of retinal versus extraretinal factors, remain debated.

Purpose of the Study:

  • To investigate the time course and underlying sources of saccadic suppression.
  • To differentiate between suppression caused by retinal image motion and extraretinal signals.

Main Methods:

  • Contrast thresholds for luminance- and color-modulated gratings were measured during voluntary and simulated saccades.
  • Experiments varied grating luminance and introduced visual noise to assess its impact on suppression.

Related Experiment Videos

Main Results:

  • A significant decrease in contrast sensitivity (saccadic suppression) was observed for luminance-modulated gratings during real saccades, but not simulated ones.
  • Suppression anticipated saccades, peaked at onset, and extended afterward, with reduced magnitude at lower luminance.
  • Visual noise amplified suppression during simulated saccades but had minimal effect on real saccades.

Conclusions:

  • Saccadic suppression possesses a significant extraretinal component, distinct from retinal image motion.
  • The findings support a model where extraretinal signals saturate visual processing during saccades.
  • Chromatic stimuli did not elicit measurable saccadic suppression.