Signal characteristics of spontaneous facial expressions : automatic movement in solitary and social smiles

  • Karen L. Schmidta, Jeffrey F. Cohna, Yingli Tianb
  • Published 2002

Abstract

The assumption that the smile is an evolved facial display suggests that there may be universal features of smiling in addition to the basic facial configuration. We show that smiles include not only a stable configuration of features, but also temporally consistent movement patterns. In spontaneous smiles from two social contexts, duration of lip corner… (More)

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