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

Spatial structure, contrast polarity and motion integration.

M J van der Smagt1, E C Breij, W A van de Grind

  • 1Department of Comparative Physiology and Helmholtz Institute, Utrecht University, Padualaan 8, NL-3584 CH, Utrecht, The Netherlands. maarten@salk.edu

Vision Research
|June 1, 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

Changes in perceived peripersonal space following the rubber hand illusion.

Scientific reports·2023
Same author

The image features of emotional faces that predict the initial eye movement to a face.

Scientific reports·2021
Same author

The additive nature of the human multisensory evoked pupil response.

Scientific reports·2021
Same author

Body ownership and the absence of touch: approaching the rubber hand inside and outside peri-hand space.

Experimental brain research·2018
Same author

Audiovisual integration in near and far space: effects of changes in distance and stimulus effectiveness.

Experimental brain research·2015
Same author

Keep your eyes on development: the behavioral and neurophysiological development of visual mechanisms underlying form processing.

Frontiers in psychiatry·2012
Same journal

Computational and mathematical models in vision: Quantitative approaches to understanding visual perception.

Vision research·2026
Same journal

Complex interactions between lightness, chroma, and hue in color ensemble perception.

Vision research·2026
Same journal

Driving with autism spectrum disorder: Exploring the impact of tactile hazard warnings on gaze behavior and hazard responses.

Vision research·2026
Same journal

Early visual processing in adults with ADHD: evidence from contrast sensitivity, spatial integration, and external noise.

Vision research·2026
Same journal

Pupil reflexes generate the peripheral drift illusion due to ON/OFF motion responses.

Vision research·2026
Same journal

Perceived direction of glass patterns can flip by 90°: A neural model.

Vision research·2026
See all related articles

The study reveals that the brain processes motion signals from light (ON) and dark (OFF) stimuli separately, even when integrated. Inhibitory interactions between these distinct motion pathways were observed.

Area of Science:

  • Neuroscience
  • Visual Perception
  • Computational Vision

Background:

  • The initial stages of visual motion processing involve separate ON and OFF pathways.
  • Evidence suggests this ON/OFF pathway distinction persists during local motion information integration.
  • Interactions between these distinct motion processing systems are also observed.

Purpose of the Study:

  • To investigate how spatial configuration of moving stimuli affects direction discrimination thresholds.
  • To examine the impact of different contrast polarity distributions on motion perception.
  • To provide new evidence for contrast-sign-specific integration and interactions between ON and OFF motion sensor pools.

Main Methods:

  • Construction of visual stimuli with a constant number of moving checks.

Related Experiment Videos

  • Manipulation of contrast polarity distribution across checks (single polarity, random, or even).
  • Measurement of direction discrimination thresholds based on stimulus configuration and polarity distribution.

    • Main Results:

    • Demonstrated contrast-sign-specific integration of local motion signals within spatially limited areas.
    • Provided evidence for inhibitory interactions between separate ON and OFF motion sensor pools.
    • Showed that spatial configuration significantly affects direction discrimination for different polarity distributions.

    Conclusions:

    • Local motion signals are integrated in a contrast-sign-specific manner within defined spatial extents.
    • Separate ON and OFF motion sensor pools interact via inhibition.
    • Understanding these distinct processing streams is crucial for comprehending complex motion perception.