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

Alleys on an extensive apparent frontoparallel plane: a second experiment.

T Indow1, T Watanabe

  • 1Department of Cognitive Sciences, School of Social Science, University of California, Irvine 92717.

Perception
|January 1, 1988
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

Determination of a new bisphosphonate, YM175, in plasma, urine and bone by high-performance liquid chromatography with electrochemical detection.

Journal of chromatography·1992
Same author

The development of hypercalcemia in a patient with an ovarian tumor producing parathyroid hormone-related protein.

Cancer·1992
Same author

Three types of Gi alpha protein of the guinea-pig lung: cDNA cloning and analysis of their tissue distribution.

Biochimica et biophysica acta·1992
Same author

Two children with bromate intoxication due to ingestion of the second preparation for permanent hair waving.

Acta paediatrica Japonica : Overseas edition·1992
Same author

[Primary carcinoma in situ of the ureter: a case report].

Hinyokika kiyo. Acta urologica Japonica·1992
Same author

Effect of time of day on adaptive response to a 4-week aerobic exercise program.

The Journal of sports medicine and physical fitness·1992
Same journal

Predictive models and parameter analysis for multiple tactile perceptions in skin-wet fabrics interface.

Perception·2026
Same journal

High-resolution kitsch by AI: Why society needs art, not more AI content.

Perception·2026
Same journal

Benchmarking spatial discrimination thresholds of two-frame motion defined forms compared to luminance and stereoscopic defined forms.

Perception·2026
Same journal

The effect of face masks on the perception of trustworthiness and competence in individuals with autistic traits.

Perception·2026
Same journal

The importance of external features for categorizing ethnicity: can Koreans identify Korean, Japanese, and Chinese faces?

Perception·2026
Same journal

Interoception, alexithymia, and motor congruency: Psychological drivers of body ownership in virtual reality.

Perception·2026
See all related articles

This study investigated visual space perception, finding that the frontoparallel plane is best described by Euclidean geometry (K=0). This challenges previous assumptions about visual space curvature in depth perception research.

Area of Science:

  • Visual perception
  • Psychophysics
  • Geometry of visual space

Background:

  • Investigating the geometric properties of visual space is crucial for understanding depth perception.
  • Previous research suggested non-Euclidean geometries for visual planes, particularly in studies of alleys.
  • The frontoparallel plane's geometry has been less explored in this context.

Purpose of the Study:

  • To determine the geometric curvature of the frontoparallel plane in visual space.
  • To test whether Euclidean geometry (K=0) adequately describes the frontoparallel plane.
  • To compare findings with previous studies on visual alleys.

Main Methods:

  • Experiment 1: Subjects adjusted light points to form straight, parallel series, estimating visual space geometry.

Related Experiment Videos

  • Experiment 2: Subjects assessed perceptual distance ratios to estimate curvature without pre-assumed mapping functions.
  • Analysis involved estimating Gaussian curvature (K) and depth perception constants (sigma) using updated equations and a new computer program.

    • Main Results:

    • Both analyses indicated that a Gaussian curvature (K) of 0 (Euclidean) is sufficient to describe the frontoparallel plane.
    • No significant deviation from Euclidean geometry was found for the frontoparallel plane.
    • This contrasts with findings from studies on visual alleys, which suggested non-Euclidean geometry.

    Conclusions:

    • The frontoparallel plane in visual space is best modeled using Euclidean geometry.
    • This finding challenges the necessity of non-Euclidean models for all aspects of visual space perception.
    • Further research may explore the differing geometric properties of various visual planes.