Science Today: Facial Expressions | California Academy of Sciences

Scientific concepts & discoveries / nature phenomena presented

• Facial expressions as a universal, nonverbal communication system

  • Smiles are associated with happiness; frowns with sadness.
  • Facial expressions add nuance to what people say (e.g., signaling joking vs. seriousness).
  • This connects to modern communication, such as emoticons in email as simplified representations of facial affect.

• Innate vs. learned origin of emotional facial expressions

  • The video examines whether facial expressions are:
    • Learned culturally, or
    • Innate/biologically programmed.

• Naturalistic experimental setting (real-life behavior)

  • Lab studies can distort behavior because participants may feel self-conscious (“watching what they’re doing”).
  • The 2004 Summer Olympic Games are presented as an effective real-life environment for studying facial expressions.

• Cross-group evidence using Olympic vs. Paralympic athletes

  • The method compares facial expressions between:
    • Sighted athletes (Olympic Games)
    • Blind athletes (Paralympic Games)
  • Key finding: blind and sighted athletes show the same facial-muscle movements
    • Occur at the same times and in the same ways
    • Winners vs. losers differentiate similarly:
      • Winners show “true enjoyment”
      • Losers show sadness/distress and/or fear/anger

• Conclusion about emotional expression biology

  • Because the same expression patterns occur in blind athletes (who cannot learn expressions visually), the video argues that emotional facial expressions come from an innate biological program present in humans from birth.
  • The implication summarized by the video: facial expressions are widespread across humans “around the world,” as long as they are human.

Methodology / study approach (as described)

• Use the Olympics/Paralympics as a naturalistic setting (more realistic than a lab).
• Record and analyze athletes’ facial expressions during competition.
• Compare facial-muscle movements between:
  • Sighted athletes and blind athletes
• Classify results by competition outcome:
  • winners vs. losers
• Look for similarities in:
  • facial muscle movements
  • timing and expression patterns across both groups

Researchers / sources featured

• David Matsumoto (Culture and Emotion Research Lab, San Francisco State University)
• International Judo Federation
  • Listed as the affiliation connecting Matsumoto’s researchers to the 2004 Olympics context