Update: Challenge 1 has been completed! Amazing effort by our pioneer group of Pyr citizen scientists! Check out the leaderboard below: About Challenge 1: Pyr is finally here! Dive into the hippocampus, a region of brain important for learning and memory. We begin our quest with Challenge 1: The 400, a set of presynaptic axons…

Here is a collection of cell classes found in the CA3 region of mouse hippocampus. To request early dataset access, email support@eyewire.org.  CA3 is a part of the hippocampal formation, a cluster of brain regions involved in learning and memory. It acts in many ways. One is as a pattern-recognition hub, using connections among cells to…