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

Neural delays, visual motion and the flash-lag effect.

Romi Nijhawan1

  • 1Cognitive and Computing Sciences, University of Sussex, Falmer, East Sussex, BN1 9QH, Brighton, UK

Trends in Cognitive Sciences
|August 30, 2002
PubMed
Summary

Visual processing delays mean moving objects may appear to lag behind their actual position. The flash-lag phenomenon, where a flashed object lags a moving one, is examined to understand visual perception and timing.

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

Motion extrapolation in the central fovea.

PloS one·2012
Same author

The perceived position of moving objects: transcranial magnetic stimulation of area MT+ reduces the flash-lag effect.

Cerebral cortex (New York, N.Y. : 1991)·2012
Same author

Does Area V3A Predict Positions of Moving Objects?

Frontiers in psychology·2011
Same author

Perceiving the present and a systematization of illusions.

Cognitive science·2011
Same author

Going, going, gone: localizing abrupt offsets of moving objects.

Journal of experimental psychology. Human perception and performance·2009
Same author

Compensating time delays with neural predictions: are predictions sensory or motor?

Philosophical transactions. Series A, Mathematical, physical, and engineering sciences·2009

Area of Science:

  • Neuroscience
  • Visual Perception
  • Primate Visual System

Background:

  • Photoreceptor signals experience significant delays reaching primate visual cortical areas.
  • The implications of these visual delays on human perception have been debated since Helmholtz.
  • The flash-lag phenomenon, where a flashed object appears to lag a co-localized moving object, is a key area of study.

Purpose of the Study:

  • To critically examine recent scientific accounts of the flash-lag phenomenon.
  • To assess the biological significance of visual delays in perception.
  • To propose new hypotheses regarding visual processing and perceived object position.

Main Methods:

  • Review and critical analysis of existing literature on the flash-lag phenomenon.

Related Experiment Videos

  • Examination of neurophysiological and psychophysical data related to visual signal transmission.
  • Development of theoretical models to explain observed perceptual discrepancies.

    • Main Results:

    • Recent accounts of the flash-lag phenomenon offer diverse explanations for the perceived lag.
    • The biological significance of these delays is linked to motion perception and temporal coding.
    • Existing models may not fully capture the complexity of visual timing.

    Conclusions:

    • The flash-lag phenomenon provides crucial insights into the temporal dynamics of the primate visual system.
    • Understanding these delays is essential for comprehending how the brain constructs a coherent visual reality.
    • Further research is needed to refine hypotheses and elucidate the neural mechanisms underlying visual timing.