So... this may not be the right forum... but I figured biology was pretty close. While we have built a very strong correlation between let's say dopamine and happiness (not sure if that's right), I was wondering if anyone knows of research that looks at correlations between matter and emotions on a smaller scale. For example, one question would be if there is some "thing" that we could isolate within dopamine that we could associate with happiness rather than just associating the entire molecule itself. The next question could be how small could we go or what other factors have to come into play too for the emotion to exist. This would turn the process of analyzing emotion into more of a physics question rather than something that's more of a biological question. Admittedly the only way we can detect emotion directly (I think) is by asking someone how they feel (or watching the expressions of an animal maybe), so this would limit the experiments and require rough measurements (if I can even call them that). Also... well there are a decent number of problems I can think of off the top of my head.... Anyway I did check online but I was bogged down with new age and abstract biology, which is not really what I'm looking for. By the way, dopamine is really more of an illustrative example because that is one of the few chemicals that I have been told is strongly associated with emotion. Just seeing if anyone sort of just knew.