Protocol for morphogen-guided differentiation of brain cell types using human induced pluripotent stem cells.

Summary: Studying human brain diseases is hard because animal brains are very different from ours. To fix this, scientists created a step-by-step guide to turn human stem cells into three important types of brain cells. They use special tricks, like lowering the oxygen, to help the cells grow better. This new method allows doctors to safely study human brain problems in a dish and test out new medicines!