Scientists find 57,000 cells and 150m neural connections in tiny sample of human brain

Harvard researchers teamed up with Google to analyse the makeup of the brain, much of which is not yet understood

Scientists have reconstructed a wiring diagram for a piece of human brain in unprecedented detail, revealing fresh quirks and complexities in what many regard as the most sophisticated object in the known universe.

Harvard researchers teamed up with experts in machine learning at Google to map out the neural circuitry, connections, supporting cells and blood supply in a speck of healthy tissue removed from the cortex of a 45-year-old woman who had had surgery for epilepsy.