You are conflating (at least) two ideas, here. I, myself, work on modeling complex systems, and am coming to think that "reduction" of some complex systems is not effective, that reduction cannot reproduce some of the behavior in the complex system.…
This group is intended for those interested in cellular and network mechanisms and the functional significance of normal and pathological synchronization and oscillations observed in small invertebrate to large cortical neuronal networks.
The Organization for Computational Neurosciences (OCNS) organizes the international Computational Neuroscience meeting (CNS) each year. CNS is a premier forum for experimental and theoretical results addressing computation in the brain.
You suggested the schools in ATL might have their own groups. A common group is much more useful, for me, at least. I have things I need to learn from people working at all the schools here. :)
Atlanta is a hot-spot (no pun intended) for interdisciplinary collaboration and home to numerous institutions contributing to basic, theoretical, and clinical research at the highest levels. This is a forum for Atlanta's 'brain children'. Use it.