With a few skin cells, scientists can make mini, thinking version of your brain

Tiny, rolling balls of brain cells knocking around in a lab may one day help keep you from losing your marbles—among other things.

The small cellular balls act like mini-brains, mimicking aspects of the real thing, including forming noggin-like structures and pulsing with electrical signals like a thinking mind, researchers reported Friday at the annual meeting of the American Association for the Advancement of Science in Washington. The mini-brains, which can be personalized based on whose cells they’re made from, may soon help scientists study a wide variety of diseases and health problems—from autism and Parkinson’s to multiple sclerosis and Alzheimer’s, as well as stroke, brain trauma and infections, such as Zika virus.

“There are a variety of places where a mini brain could be useful,” said Wayne Drevets of Janssen Pharmaceuticals Inc., who was not involved with the research. In some cases, they may offer a cheaper, more ethical, and more realistic model for human health than mice and other animals, he and other researchers said at the conference.

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