How is it that some people see an object as blue, while others say that same object is green? How do brain cells communicate with each other? Did the gigantic dinosaurs also have gigantic brains and a gigantic number of neurons? Are emotions experienced in the heart or the brain? Is it true that you can be ‘left-brained’ or ‘right-brained’? Why do people still receive electroshock therapy? What happens in the brain when you take psychedelics? Are there people or animals with more or fewer than two brain hemispheres? Is dopamine good for you and serotonin bad? Can you distinguish between people who are visual or auditory learners?