There's been a great revolution in emotion research over the past ten, 20 years. And its just been an amazing explosion in research which totally debunk the traditional theory of emotion. So one thing is about what emotion actually is. Darwin concluded that there were six basic emotions, and there was happiness, sadness, anger, fear, surprise and disgust. Now we don't make that division so much, and we we look at much wider range of emotions,. awe, embarrassment, jealousy, all having this quality in common - their functional states of the brain.