café wall illusion en · NOUN
Etymology
Described under its current name in 1973 by Richard Gregory, according to whom this effect was observed by a member of his laboratory, Steve Simpson, in the tiles of the wall of a café at the bottom of St Michael’s Hill, Bristol.
Meanings
- An optical illusion in which the parallel straight dividing lines between staggered rows with alternating dark and light bricks appear to be sloped rather than parallel.
Forms
| Spelling | Features | Labels | Source |
|---|---|---|---|
| café wall illusions | Number=Plur | lexicographic | |
| café-wall illusion | alternative | lexicographic |