Your Brain is More Than a Bag of Chemicals.

Modern psychiatric drugs treat the chemistry of the whole brain, but neurobiologist David Anderson believes in a more nuanced view of how the brain functions. He illuminates new research that could lead to targeted psychiatric medications -- that work better and avoid side effects. How's he doing it? For a start, by making a bunch of fruit flies angry. Through his lab at the California Institute of Technology, David Anderson seeks to find the neural underpinnings of emotions like fear, anxiety and anger.