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

Nonlinearities in binocular visual evoked potentials in children.

R T Paley1, V G Sutija, H A Solan

  • 1Schnurmacher Institute for Vision Research, SUNY State College of Optometry.

Documenta Ophthalmologica. Advances in Ophthalmology
|May 1, 1989
PubMed
Summary

Investigating visual evoked potentials (VEPs) in children, this study found binocular facilitation for flicker stimuli across all conditions. This suggests nonlinear interactions in binocular VEPs, differing from monocular responses.

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

Electrophysiological assessment of visual deficit in glaucoma.

Applied optics·2010
Same author

Visual deficits and dyslexia.

Journal of learning disabilities·2004
Same author

Role of visual attention in cognitive control of oculomotor readiness in students with reading disabilities.

Journal of learning disabilities·2004
Same author

Nearwork distances in children.

Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists)·2001
Same author

Effect of maternal weight gain on infant birth weight.

Journal of perinatal medicine·2001
Same author

Neonatal echocardiograms of macrosomic neonates.

Journal of perinatal medicine·2001

Area of Science:

  • Neuroscience
  • Ophthalmology
  • Vision Science

Background:

  • Optimal conditions for using visual evoked potentials (VEPs) to objectively measure binocular visual function remain controversial.
  • Little emphasis has been placed on stimulus types that elicit facilitation in binocular recordings.

Purpose of the Study:

  • To investigate the effects of stimulus type (flicker vs. pattern), contrast, and temporal modulation on binocular VEP facilitation.
  • To determine if binocular VEPs result from simple summation of monocular responses.

Main Methods:

  • Recorded monocular and binocular VEPs in children using sinusoidally modulated flicker and grating patterns.
  • Analyzed responses using Fourier analysis, examining fundamental and second harmonic components.
  • Investigated facilitation, defined as a binocular response exceeding the sum of monocular responses.

Related Experiment Videos

Main Results:

  • Binocular facilitation was observed across all tested conditions for flicker stimuli.
  • Pattern and flicker stimuli appear to be processed at different sites within the visual system.
  • Facilitation in binocular VEPs indicates a nonlinear component, not simple summation of monocular responses.

Conclusions:

  • Binocular VEPs exhibit facilitation, particularly with flicker stimuli, suggesting complex visual processing.
  • The distinct processing of flicker and pattern stimuli implies different neural pathways.
  • Binocular VEPs offer a nonlinear, objective measure of visual function beyond simple additive monocular inputs.