English Explanatory Dictionary

Poggendorff illusion

English dictionary entry

Meanings

noun
  1. An optical illusion involving the misperception of the position of one segment of a transverse line that has been interrupted by the contour of an intervening structure.

Word forms

Poggendorff illusion Poggendorff illusions

Etymology

Named after Johann Christian Poggendorff, journal editor who discovered the effect in figures submitted by Johann Karl Friedrich Zöllner in 1860.

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