>Clumps of brain cells that are alive and practically kick-ing — that's what scientists created when they tweaked a method for growing brain tissue in a dish. Meanwhile, another team used a different approach to produce brain waves in similar lab-grown mini-organs. The two papers, published in March in Nature Neuroscience and August in Cell Stem Cell, modified existing techniques for growing cultures called brain organoids. In organoids, human stem cells are first coaxed into becoming brain cells, which then organize themselves into a three-dimensional structure similar to a developing brain.
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