Abstract
The central complex in the brain of insects is a group of midline-spanning neuropils at the interface between sensory and premotor tasks of the brain. It is involved in sleep control, decision making and most prominently in goal-directed locomotion behaviors. The recently published connectome of the central complex of Drosophila melanogaster is a milestone in understanding the intricacies of the central complex circuits and will provide inspiration for testable hypotheses for the coming years. Here I provide a basic neuroanatomical description of the central complex of Drosophila and other species and discuss some recent advancements, some of which, like the discovery of coordinate transformation through vector math, have been predicted from connectomics data.
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