I think its somewhat early in research. They are seeing they can process info through the neurons like computing, and that at full gestation period there is a change. However they claim that without external sensing and stimuli such as vision or movement or a way to interact with the environment that they arent sure if true conscious like behaviour would emerge, because an organism learns its surrounding and sense of self by interaction with the physical world. Its a scary topic that I don’t have proper knowledge to comment on how beneficial or horrific it might be