i wasn't being entirely facetious with the second molecule. i spent most of my time in the office last week wading through the literature on caffeine and its effects on mood, behaviour, electrophysiology and BOLD imaging. there are a lot of papers, and very little consensus among them. surprising, considering that caffeine is the most commonly used psychostimulant in the world.

(by the way, trawling journal databases is probably the part of my job that i like the least, and there's been a lot of it lately. will call it quits on wednesday.)