A few months back we highlighted a review which examined the actual neuroscience effects of love, at least what fMRI shows.   The study (Neuroimaging Love - Romance Is More Scientific Than You Think) noted there are different cortical networks and cognitive factors than just subcortical dopaminergic reward-related brain systems (dopamine and oxytocin receptors) and instead said different types of love involve distinct cerebral networks.

All well and good, but Scientific American has the story more recently (ours was in October last year when the study came out) and theirs is oddly dated in the future, Feb 14,2011 (Valentine's Day, of course), but it has a cool graphic provided by one of the researchers, and so they get a Science 2.0 link.

eurotransmitters of love