Darwin non-verbal communication

• Who is Charles Darwin and what are his years of birth and death?

  Charles Darwin, 1809-1882
• What are the advantages of non-verbal behaviors in human communication?

  They convey emotions we may not articulate
• What principle did Darwin suggest regarding non-verbal communication?

  Serviceable associated habits
• What is a serviceable behavior according to Darwin?

  A behavior that has a purpose
• How might early humans have used biting as a form of communication?

  As an early form of self-defense
• What does a serviceable associated habit imply?

  Behaviors become habits linked to feelings
• Why might people expose their teeth when angry?

  It is a habit associated with anger
• What does the principle of actions due to the constitution of the nervous system mean?

  Some non-verbal communication is caused by the nervous system
• How does pupil dilation relate to fear?

  It increases visual information to avoid danger
• What is the purpose of an open mouth during a frightened response?

  It increases oxygen supply for faster movement
• How can pupil dilation affect attraction?

  It can make us more attractive to others
• What does a high level of looking indicate?

  It is interpreted as a signal of attraction
• What are the key principles Darwin suggested for the evolution of non-verbal communication?

  • Serviceable associated habits
  • Actions due to the constitution of the nervous system
• How do non-verbal cues assist in reproduction according to Darwin's principles?

  • Pupil dilation increases attraction
  • Open mouth enhances oxygen supply for movement
  • High levels of looking signal interest