Lab-grown brain bits open windows to the mind — and a maze of ethical dilemmas

Xuyu Qian yanked open an incubator door at the University of Pennsylvania to reveal rows of cylindrical tubes swirling, like shaken-up snow globes, with a strange and exotic flurry. The pale, peppercorn-sized spheres were lab-grown globules of human brain tissue, or, as Qian occasionally refers to them, “minibrains.” “Minibrain” is a controversial nickname, loathed by... Continue Reading →

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