You can have the same effect without direct wiring into the brain. You just need an AI that always wants to “check in” to make sure it’s aligned with human goals and values. There’s a good discussion of that in this book. It’s more game theory added on top of neural networks than biotech (but it probably will be the basis for more direct wiring once we have a better idea of how the human brain works).

(Also, no “consciousness” would be involved, because nobody is even trying for that.)