Illusion decrement in intersecting line figures

Stanley Coren, Joan S. Girgus

Research output: Contribution to journalArticlepeer-review

32 Scopus citations


This study tests the generality of illusion decrement using four illusion figures involving intersecting lines: the Zoellner, Poggendorff, Wundt-Hering, and Mueller-Lyer figures. Five minutes of inspection with testing at 1-min intervals led to significant decrement in all figures. The rate of decrement was the same for all figures. These data are consistent with a judgmental theory of geometric illusions.

Original languageEnglish (US)
Pages (from-to)108-110
Number of pages3
JournalPsychonomic Science
Issue number2
StatePublished - Feb 1972

All Science Journal Classification (ASJC) codes

  • Catalysis
  • General Chemistry


Dive into the research topics of 'Illusion decrement in intersecting line figures'. Together they form a unique fingerprint.

Cite this