One cubic millimeter of the brain


A 3D model or map of a cubic millimeter of the human brain was presented last May by researchers at Harvard University and Google. A cubic millimeter is only a million of the brain, but it is the most detailed and detailed map of the brain ever made.

In fact, it has a nanometric or synaptic resolution. It shows in detail almost all the cells of this part of the brain and its network of neural connections, with a visible resolution of all synaptic junctions. In total, 57,000 cells and 150 million synapses.

The model was obtained from a temporal cortex sample using electron microscopy images and artificial intelligence algorithms. And they found structures that had never been seen before, such as spiral axons and sets of axons connected by 50 synapses. The sample was from a patient with epilepsy, and researchers are not sure if these structures are pathological or simply uncommon.

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