Jove
Visualize
Contact Us

Related Experiment Videos

Brightness constancy in a Ganzfeld environment

G Schouten1, F J Blommaert

  • 1Institute for Perception Research (IPO), Eindhoven, The Netherlands.

Perception & Psychophysics
|October 1, 1995
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

The human cell line PER.C6 provides a new manufacturing system for the production of influenza vaccines.

Vaccine·2001
Same author

Visual metrics: discriminative power through flexibility.

Perception·2001
Same author

Yoghurt enriched with Lactobacillus acidophilus does not lower blood lipids in healthy men and women with normal to borderline high serum cholesterol levels.

European journal of clinical nutrition·1999
Same author

Brightness indention: a novel compression mechanism in the luminance-brightness mapping.

Perception & psychophysics·1995
Same author

Maturational gonadotropin from the African catfish, Clarias gariepinus: purification, characterization, localization, and biological activity.

General and comparative endocrinology·1992
Same author

An object-oriented model for brightness perception.

Spatial vision·1990
Same journal

Response organization in selective adaptation to speech sounds.

Perception & psychophysics·2014
Same journal

Reaction times to comparisons within and across phonetic categories.

Perception & psychophysics·2012
Same journal

Auditory and phonetic memory codes in the discrimination of consonants and vowels.

Perception & psychophysics·2012
Same journal

Simple and contingent adaptation effects for place of articulation in stop consonants.

Perception & psychophysics·2012
Same journal

Auditory property detectors and processing place features in stop consonants.

Perception & psychophysics·2012
Same journal

Visual working memory for line orientations and face identities.

Perception & psychophysics·2008
See all related articles
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

Brightness constancy was investigated in a Ganzfeld environment. While a strong tendency toward brightness constancy was observed, minor luminance level effects were detected, suggesting contrast accumulation models are effective.

Area of Science:

  • Visual perception
  • Psychophysics
  • Color science

Background:

  • Brightness constancy is a key aspect of visual perception.
  • Understanding how luminance affects perceived brightness is crucial.
  • Previous studies have explored brightness constancy under various conditions.

Purpose of the Study:

  • To investigate brightness constancy in a Ganzfeld environment.
  • To examine the influence of luminance variation on perceived brightness.
  • To evaluate the role of contrast information in brightness perception.

Main Methods:

  • Experiments were conducted in a Ganzfeld environment.
  • Stimuli consisted of a Ganzfeld with superimposed disks, with luminance varied using neutral density filters.

Related Experiment Videos

  • Sequential dichoptic brightness matches were performed for both disks and the surround.

    • Main Results:

    • A strong tendency toward brightness constancy was observed.
    • Small but systematic effects of average luminance level on perceived brightness were detected.
    • The brightness of the Ganzfeld was minimally affected by the presence of superimposed disks.

    Conclusions:

    • Brightness constancy is a robust phenomenon but can be modulated by luminance levels.
    • The Ganzfeld's brightness perception is largely independent of superimposed elements.
    • An accumulation of contrast information adequately models the experimental findings.