Is the brain more or less active during sleep? Does neuroscience provide better explanations for behaviour than psychology? How is it that some people see an object as blue, while others say that same object is green? Which brain region is the most important? Is dopamine good for you and serotonin bad? Are there people or animals with more or fewer than two brain hemispheres? What is the ‘brain freeze’ sensation when eating or drinking something cold? What is the purpose of brain research? Why don’t we use stem cell therapy for MS? Can you distinguish between people who are visual or auditory learners?