1. Facial expression of emotion

2. Facial expression Darwin (1872) catalogued facial expressions
He emphasized their universal nature
And emotions as signals
E.g., bowlers do not smile when they get a strike they smile when they turn around to see other watching them (Kraut & Johnston, 1979)

3. Evolution of facial expressions
Anger = open mouth threat, display
Fear = grimace, silent bared teeth, nervous grin
Happy = Chimpanzee play face
Disgust ? ejection of bad food, wrinkling nose to bad smell
Sad?
Surprise? Interest raised eyebrows to see more

4. Basic Emotion

5. Emotion in Infancy

6. From: www.bushorchimp.com
Similarities in facial expression across closely related species?

7. Facial Expression of Emotion
Emission
Cross cultural similarity of expressions. Papua New Guinea “imagine your child died” (Ekman & Friesen 1975)
Cultural differences in frequency of expression
Japanese less negative expressions in society (Matsumoto et al 1988)

8. Universal Expressions? (Papua New Guinea)

9. Facial Expression of Emotion
Emission
Cross cultural similarity of expressions and causes
Deaf and blind children’s expressions are normal
Therefore production of expressions is innate (Darwin)
Comprehension
Universal interpretation of 6 basic emotions (Ekman)
happy, sad, angry, fear, surprise, disgust,