The Mini brains grown in a dish have produced human-like brain waves. They are the electrical patterns look similar to those of premature babies. This would aid scientists to study early brain development.
The research in this area has been sluggish, partly because it is difficult to obtain fetal-tissue samples for analysis and nearly impossible to examine a fetus in utero. Many researchers are intrigued about the promise of these ‘organoids’, if they are grown as 3D cultures, can develop into some of the complex structures that are seen in brains. But the technology also raises eyebrows regarding the ethics of creating miniature organs that could develop consciousness...