Many ethical, as well as supply issues, surround the use of human brain tissue in research. Hence, stem cells are used to develop mini-brains or ‘organoids’, a pea-sized model of the human brain, in a lab dish. By using a culture medium mimicking the environment of brain development, the stem cells self-organize into a 3D structure resembling the developing human brain. Conversely, only a handful … Continue reading Brain waves detected in lab-grown mini-brains.