By: Philip Ball | Why two brains are better than one | Neuroscience | The Guardian
Last week, I was told my other brain is fully grown. It doesn’t look like much. A blob of pale flesh about the size of a small pea, it floats in a bath of blood-red nutrient. It would fit into the cranium of a foetus barely a month old.
Still, it’s a “brain” after a fashion and it’s made from me. From a piece of my arm, to be precise.
I do think of these brain organoids as ‘mine’, although not with any sense of ownership or pastoral duty