and then there's a whole crop of people called neuro -- neuroentrepreneurs, who are trying to make -- frankly, trying to make a buck off selling things that have to do with education in neuroscience and a lot of fads that one has to be very careful about. so really, circuitry is where it is, and that's where neuroscientists are focusing most of their energy. how the various regions interact with each oomph it's enormously complicated. so fmri is basically a research tool. we're probably one foot into a ten-mile long journey on understanding the brain. but nonetheless, these brain images have migrated into the public sphere, where the implied promise of decoding the brain, one can see what's politicians are so interested. in fact there are some public relations groups that offer neuroimaging, and in an attempt to advise their clients about how to make their candidates more appealings. this was actually from an op-ed in the "new york times" from 2007, where candidates were shown to swing voters, and the reactions of those voters' brains were supposedly indicative of what the candidate w