How complicated is the brain?

The brain is a complex organ. Even in something as small as a fruit fly (whose brains are mapped in the image above). Yet…

Scientists from Google and the Janelia Research Campus in Virginia have published the largest high-resolution map of brain connectivity in any animal, sharing a 3D model that traces 20 million synapses connecting some 25,000 neurons in the brain of a fruit fly.

The model is a milestone in the field of connectomics, which uses detailed imaging techniques to map the physical pathways of the brain. This map, known as a “connectome,” covers roughly one-third of the fruit fly’s brain. To date, only a single organism, the roundworm C. elegans, has had its brain completely mapped in this way.

It’s a fascinating story of both biology and computer science. (It takes a lot of computing power to do this). For more details, see: Google publishes largest ever high-resolution map of brain connectivity – The Verge

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