It may sound like something out of science fiction, but scientists grew mini-brains in a lab with functional neural networks that can produce brain waves. (Credit: Shutterstock)

These pea-sized lumps of
cells don’t look like much, but they are mini-brains, also called brain
organoids, that were grown in a lab using human stem cells.

And for the first time,
scientists have created mini-brains with humanlike neural networking capable of
producing brain waves similar to those observed in pr