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Dynamic properties of successful smiles

Fig 3

Smile 22 with various amounts of timing (delay) asymmetry.

All animations started with the same (symmetric) neutral expression and ended with the same (symmetric) smiling expression, so the asymmetries were only visible for a few frames of the 250 ms animation.

Fig 3

doi: https://doi.org/10.1371/journal.pone.0179708.g003