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The 12th European Conference On Facial Expression University of Geneva, Switzerland

Infant Smiling Dynamics And Perceived Positive Emotion D. Messinger, T. Cassel, Z. Ambadar , & J. Cohn Facial Expression as a Window on Perceptual-Cognitive Processing, Hedonics, & Affective Communication in Infants July, 2008. The 12th European Conference On Facial Expression

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The 12th European Conference On Facial Expression University of Geneva, Switzerland

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  1. Infant Smiling Dynamics And Perceived Positive EmotionD. Messinger, T. Cassel, Z. Ambadar, & J. CohnFacial Expression as a Window on Perceptual-CognitiveProcessing, Hedonics, & Affective Communication in InfantsJuly, 2008 The 12th European Conference On Facial Expression University of Geneva, Switzerland

  2. What Infant Smiles Tell Us About Positive Emotion: An Automated Approach • How do infants smile? • Smile strength (AU12) • Cheek Raise / Eye Constriction (AU6) • Lip Parting - Mouth Opening (AUs 25/26/27) • How are actions associated in time? • Do they predict rated positive emotion? • Not Yes/No, • but how much?

  3. Smile Strength Mouth Opening Automated Measurement Now: Feature Point Tracking AFA3 Later Today: Other Approaches Other Topics AFA4 + …

  4. Reliability Correlations: Manual FACS & Automated AFA3

  5. Lengthy Smiles

  6. Manual/Ordinal FACS PerspectiveSome Ebb And Flow In These Smiles

  7. Continuous/Automated Perspective: Ebb And Flow In These Smiles psy.miami.edu/faculty/dmessinger/

  8. Actions Associated In Time AU6 (Manual) .68 .58 Smile Strength Auto/Manual Mouth Opening Auto/Manual .21/.51

  9. Half Speed

  10. Vertical bars are the standard deviations of the parent sample. Students & parents rate images similarly psy.miami.edu/faculty/dmessinger/

  11. Students & Parents Rating Still Images

  12. Students & Parents Rating Still Images

  13. Automated Measurements Positive Ratings of Images Positive Feeling Automated: Mean of Smile Strength & Mouth Opening

  14. Figure 1. Screenshot of Continuous Rating Software Switch to mouse control Menu Scaling Bar Picture Frame Rating Cursor Emotion Ratings Of Non-expert Observers • Positive • Emotional • Valence • Ratings psy.miami.edu/faculty/dmessinger/

  15. Continuous Measurements Predict Continuous Emotion Ratings

  16. Emotion as a Continuous Process • Infant interactive smiles can be lengthy • They involve the movement of actions linked in time • Smile strength, AU6, Mouth Opening • All actions predict rated positive emotion (univariate) • Smile strength and mouth opening predict independently • Infant positive emotion is a multipeaked process with several linked indices

  17. Issues for later today • Measurement • Interaction

  18. Thanks!

  19. BabyFACS Matrix (3 + None)

  20. BabyFACS Matrix psy.miami.edu/faculty/dmessinger/

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