fMRI ( functional Magnetic Resonance Imaging) is the star of the neurosciences. Research using fMRI scans provides steadily increasing amounts of information about the functioning of our brain.
What causes depression: serotonin or what you experience? The answer: the question is invalid! Both play a role, but you cannot say that one of these is the cause.
Sometimes our memory is compared with the hard disc of a computer where data is stored, or a filing cabinet. But that is not the way our memory works. How does the act of recall actually work? And what is the role of the hippocampus? And how do false confessions come into existence?
Our olfactory organ is quite exceptional. What you are capable of smelling can change within a few months as a result of changes within your nose. And a smell apparent to one person may be completely undetectable to another.
If you cut your finger the pain appears to originate at the site of the wound. But that is misguided. Pain is an emotion that is generated in the brain itself. How you experience pain is closely related to your emotional state and is strongly influenced by a placebo or by diverting your attention. Pain is always in your head.