Moving smiles: The role of dynamic components for the perception of the genuineness of smiles

  • Krumhuber E
  • Kappas A
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Abstract

Three experiments were conducted to examine whether the temporal dynamics of Duchenne-smiles influenced the perception of smile authenticity. Realistic computer-generated Duchenne-smiles that varied in their onset- and offset-durations (Experiment 1), or only in their offset-duration (Experiment 2), or in both their onset- and apex-durations (Experiment 3), were created using Poser 4 software. Perceived genuineness varied monotonically with the duration of each manipulated dynamic component. The results are in accordance with Ekman and Friesen's (1982) observations regarding the duration of smiles of enjoyment, which suggest that each dynamic component has a distinct duration range that can influence the perceived genuineness of smiles.

Author-supplied keywords

  • Dynamics
  • Emotions
  • Facial expressions
  • Perception of emotions

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