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Neurophysiology charges ahead

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Science  02 Oct 2015:
Vol. 350, Issue 6256, pp. 111-113
DOI: 10.1126/science.350.6256.111

Summary

At first glance, animal nervous systems seem to defy understanding. Even a "simple" animal such as a fly has over 100,000 neurons that can fire in billions of possible combinations, driving precise, nuanced responses to complex environmental stimuli. Nonetheless, evolution has given brains a few features that make them tantalizingly easy to study—at least in theory.