Our current main project involves figuring out how to use these chemicals to help prevent or reduce damage in Alzheimer's, stroke, TBI, etc... as well as general cognitive enhancers (which is what many of us are actually interested in, but it's most difficult to get funding for improving performance of normal individuals)
Since you have ''behvioral'' in your name...
there is one behavioural addiction (dopaminergic in its nature I think, same / similar as alcohol addiction) which is very common among these gambling Bitcoin community members
https://bitcointalk.org/index.php?topic=178336.16900You could devise a method of diagnosing and curing this addiction. Bitcoins will pour into your pockets for this research
