𝔖 Bobbio Scriptorium
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Optical Illusions Produced by Observation of Rotating Spirals

✍ Scribed by GRÜNBAUM, O. F. F.


Book ID
109433128
Publisher
Nature Publishing Group
Year
1898
Tongue
English
Weight
133 KB
Volume
57
Category
Article
ISSN
0028-0836

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Perception of rotating spiral patterns b
✍ C. Martinoya; J. D. Delius 📂 Article 📅 1990 🏛 Springer-Verlag 🌐 English ⚖ 799 KB

The ability of pigeons to discriminate indepth moving stimuli was studied with the rotating spiral illusion. Trained with tightly wound spirals, the birds were able to distinguish apparently approaching from apparently retreating spirals. Discrimination also persisted with loosely wound spirals, eve