1. The Roots of Emotion

2. Fundamental Emotions
First theorized by Darwin as emotions that are evolutionarily adaptive
Anywhere from 6-10
Certain facial expressions are constant across cultures.
These same expressions emerge very early in children (1-2 months)
Blind people make and understand these expressions

3. Facial Feedback Hypothesis
Emotions result from the physical feedback of how our muscles, particularly those in our face, are acting.
Proprioception: feedback about body states
If we get someone to make a facial expression, will they feel that emotion?

4. The simulation heuristic
Emotions tend to be stronger if we can imagine a scenario where we would not have been rewarded/punished.