Wobbling appearance of a face induced by doubled parts

Faculty of Integrated Arts and Social Science, Japan Women's University, Nishi-ikuta 1-1-1, Tama-ku, Kawasaki-shi, Kanagawa-ken, Japan.
Perception (Impact Factor: 0.91). 01/2011; 40(6):751-6. DOI: 10.1068/p7000
Source: PubMed


An illusion produced by duplicating facial parts, which can cause an unstable feeling for many observers, was investigated. We examined factors that contribute to the unstable feeling. The results suggest that this illusion is specific to face perception, and the unstable feeling may be generated by difficulty in keeping attention directed to either of the duplicated facial parts.

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