• English
    • Deutsch
  • English 
    • English
    • Deutsch
  • Login
View Item 
  •   Home
  • Universität Ulm
  • Publikationen
  • View Item
  •   Home
  • Universität Ulm
  • Publikationen
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.
More recent version available under http://dx.doi.org/10.18725/OPARU-5250

The mirrored triangles illusion: on the perceived distance between triangles in mirror image arrangement

Thumbnail
Gespiegelte_Dreiecke ... (1.303Mb)
Erstveröffentlichung
2017-10-18
Authors
Kreiner, Welf A.
Wissenschaftlicher Artikel


Faculties
Fakultät für Naturwissenschaften
Abstract
The mirrored triangles illusion is described and investigated. Two black isosceles triangles are arranged symmetrically with respect to a vertical plane such that the apices face each other. While keeping their distance as well as their area constant, the shape of the triangles is varied. It is observed that the apparent distance of the tips varies as a function of the triangles´ shape, exhibiting a maximum when they are nearly rectangular. This coincides with the situation where the diameter of the outer circle encompassing both triangles approaches a minimum. An explanation is proposed where the variation of the apparent distance is ascribed to a size constancy effect. A mathematical function is derived and fitted to the experimental values. From this, a size constancy parameter of k= 0.477(33) is obtained.
Date created
2017-10-13
Later version(s)
http://dx.doi.org/10.18725/OPARU-5250
Subject headings
[GND]: Geometrisch-optische Täuschung | Größenkonstanz | Kontexteffekt
[LCSH]: Distances
[Free subject headings]: Apparent distance | Data processing capacity | Geometrical-optical illusion | Size constancy | Context effect
[DDC subject group]: DDC 530 / Physics
License
Standard
https://oparu.uni-ulm.de/xmlui/license_v3

Metadata
Show full item record

DOI & citation

Please use this identifier to cite or link to this item: http://dx.doi.org/10.18725/OPARU-4528

Kreiner, Welf A. (2017): The mirrored triangles illusion: on the perceived distance between triangles in mirror image arrangement. Open Access Repositorium der Universität Ulm und Technischen Hochschule Ulm. http://dx.doi.org/10.18725/OPARU-4528
Citation formatter >



Policy | kiz service OPARU | Contact Us
Impressum | Privacy statement
 

 

Advanced Search

Browse

All of OPARUCommunities & CollectionsPersonsInstitutionsPublication typesUlm SerialsDewey Decimal ClassesEU projects UlmDFG projects UlmOther projects Ulm

My Account

LoginRegister

Statistics

View Usage Statistics

Policy | kiz service OPARU | Contact Us
Impressum | Privacy statement