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

Fundus pigmentation and equiluminant moving phantoms.

J M Brown1

  • 1Department of Psychology, University of Georgia, Athens 30602-3013, USA. jmbrown@uga.cc.uga.edu

Perceptual and Motor Skills
|July 7, 2000
PubMed
Summary

Moving visual phantoms are more visible in individuals with lightly pigmented fundi. This difference in phantom visibility relates to background luminance and magnocellular pathway activity.

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

A comparison of critical thinking abilities between accelerated and traditional baccalaureate nursing students.

The Journal of nursing education·1997
Same author

Samuel Eugene Harmon (1871-1935).

Journal of the South Carolina Medical Association (1975)·1997
Same author

Modification of the antitumor activity of chemotherapeutic drugs by the hypoxic cytotoxic agent tirapazamine.

Cancer chemotherapy and pharmacology·1997
Same author

Three-dimensional structures of gonadotropins.

Molecular and cellular endocrinology·1996
Same author

Evaluation of monoclonal antibodies for generic detection of flaviviruses by ELISA.

Journal of virological methods·1996
Same author

The DNA damage response in DNA-dependent protein kinase-deficient SCID mouse cells: replication protein A hyperphosphorylation and p53 induction.

Proceedings of the National Academy of Sciences of the United States of America·1996

Area of Science:

  • Visual perception
  • Neuroscience
  • Ophthalmology

Background:

  • Visual phantoms represent a perceptual completion illusion where illusory contours and surfaces are perceived.
  • The visibility of these phantoms can be influenced by various visual stimuli and individual physiological differences.

Purpose of the Study:

  • To investigate the influence of fundus pigmentation on the visibility of moving visual phantoms.
  • To explore the relationship between phantom visibility, background luminance, and the magnocellular pathway.

Main Methods:

  • Measured the visibility of moving visual phantoms using equiluminant and near-equiluminant chromatic inducing gratings.
  • Recruited observers with either darkly or lightly pigmented fundi.
  • Analyzed visibility differences as a function of background luminance.

Main Results:

  • Phantom visibility was significantly greater in observers with lightly pigmented fundi compared to those with darkly pigmented fundi.
  • Differences in visibility between the two groups varied with background luminance.
  • Findings suggest a link between phantom visibility and magnocellular pathway function.

Conclusions:

  • Fundus pigmentation plays a crucial role in the perception of moving visual phantoms.
  • The results support a proposed relationship between phantom visibility and the activity of the magnocellular visual pathway.
  • Further research is warranted to fully elucidate the mechanisms underlying these observations.

Related Experiment Videos