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Chapters
- 00:05Title
- 00:40Structured Interview
- 01:12Viewing Distance
- 02:51Blur Level & Source of Illusory Effect
- 04:05Perceived Mouth Slant: Distance & Blur
- 05:29Results: Effect of Distance and Blur on the Perceived Contentment of La Bella Principessa, Mona Lisa, and Portrait of a Girl
- 06:23Conclusion
This paper discusses the methodology used to reveal the 'Uncatchable Smile' illusion in Leonardo da Vinci's La Bella Principessa portrait. A combination of three methods was used (inter-observation, structured interviews, and psychophysical experiments), which led to an investigation that shaped itself without prior beliefs, thus reducing potential researcher bias.
