However a recently developed technique by researches at the Salk Institute which is being displayed at The Beautiful Brain promises to unleash a wealth of new understanding by opening up the functioning brain to traditional brain connectivity study. For the first time an analysis will be able to be made concerning the fine-scale connectivity of the brain in living organisms.
And it has all been made possible using a dash of fluorescence and smigin of Rabies virus.
Monosynaptic tracing rabies virus with EGFP gene | The Beautiful Brain