What are emotions, and why do we have them? What are the brain processes involved in emotion, and how can emotional disorders be understood? Are emotions an illogical vagary of the human condition, or could they have adaptive value? In The Brain and Emotion, Edmund Rolls provides a modern neuroscience-based approach to understanding the brain mechanisms involved in emotion, and motivated behaviours such as hunger, thirst, sexual behaviour, and addiction. Rolls links his analysis of the neural structures and mechanisms of emotion and motivation to a wider consideration of what emotions are, how they evolved, and why emotional and motivational feelings - and ultimately consciousness itself - might arise in the brain.