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

Springer's lines and Hermann's grid.

D Laming1

  • 1Department of Experimental Psychology, University of Cambridge, UK.

Ophthalmic & Physiological Optics : the Journal of the British College of Ophthalmic Opticians (Optometrists)
|April 1, 1992
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

Two categories of contextual variable in perception.

The Behavioral and brain sciences·2014
Same author

Misinterpretation of conditional statements in Wason's selection task.

Psychological research·2001
Same author

Improving the detection of cancer in the screening of mammograms.

Journal of medical screening·2000
Same author

Screening cervical smears.

British journal of psychology (London, England : 1953)·1995
Same author

The human element in medical screening.

Journal of medical screening·1995
Same author

F. Hegelmaier: on memory for the length of a line.

Psychological research·1992

Hermann's grid and Springer figure illusions stem from Fourier components. Near-threshold contrast compression explains perceptual defects, impacting illusory line perception.

Area of Science:

  • Visual perception
  • Neuroscience
  • Computational vision

Background:

  • Hermann's grid and Springer figure produce illusory brightness and darkness in white spaces.
  • These visual illusions vary with viewing distance.

Purpose of the Study:

  • To investigate the relationship between the visibility of illusory elements and the detectability of sinusoidal gratings.
  • To understand the role of contrast compression in visual perception of these figures.

Main Methods:

  • Fourier decomposition of Hermann's grid and Springer figure.
  • Detection thresholds for sinusoidal gratings were measured.
  • Analysis of contrast-response functions.

Main Results:

Related Experiment Videos

  • Illusory element visibility correlates with the detectability of specific Fourier components.
  • Near- and sub-threshold contrasts exhibit fourth-power compression.
  • This compression leads to perceptual defects, akin to missing Fourier components.

    • Conclusions:

    • Visual perception of Hermann's grid and Springer figure illusions is linked to Fourier analysis and contrast sensitivity.
    • Fourth-power compression of contrast significantly affects the perception of these visual stimuli.