Researchers trained neurons to believe that they were real brains.

"A 3D-printed brain model using nanopillars is reshaping neuroscience, allowing neurons to grow in realistic ways. This breakthrough could unlock crucial insights into brain disorders. (Artist’s concept.) Credit: SciTechDaily.com" (ScitechDaily, Scientists Tricked Neurons Into Thinking They’re in a Real Brain"

There is also one very interesting model of alien life. That lifeform is an intelligent robot that is controlled by cloned brains. Theoretically, those cloned brains are possible to make using mini-brains. Cloned neurons that are used in medical tests are basically similar to neurons that are in our brains. It's possible that someday researchers grow brains that are as intelligent as human brains.  

In some visions, the brain is connected to the computer that connects it with surveillance cameras and robot bodies remotely. That kind of system where brains live in nutrients and interact with their environment through mechanical bodies and other things are the tools that can revolutionize science. Or that is the biggest mistake that humans make. 

Researchers cheated cloned neurons think that they were "real brains". That thing made those neurons grow in structured networks. The thing is this kind of ability to program neurons makes it possible to create new biohybrid microchips or researchers can grow cloned neurons in the laboratory and program them for repairing the neural damages. That is one thing that the cloned neurons can make. 

"Bipolar mood swings may stem from two brain “clocks” running at different speeds—one biological and the other dopamine-driven. Scientists created similar patterns in mice, showing dopamine’s key role and offering hope for targeted treatments. Credit: SciTechDaily.com"(SciTechDaily.com, Scientists Discover a Hidden Brain Clock Driving Bipolar Mood Swings)

The discoveries uncovered the hidden clock in brains. They noticed that the bipolar mood swings formed because those clocks worked at different speeds. By synchronizing those clocks is possible to affect that thing. 

Manipulating that clock is theoretically possible to create a situation where a person doesn't need sleep. There is the possibility to create nanotechnical medicals that fill the neurotransmitter stores. That allows the person to operate without sleep. 

But the fact is that brain manipulation is very dangerous. If something goes wrong that can cause terrible damage. The ability to manipulate and train individual neurons makes it possible to transport information into the human brain. That thing is possible in the case of brain damage. Or that thing can be used in cases where a person wants to get some new skills easily. The fact is that the technology that is used in tests will sooner or later escalate into everyman's technology. 

https://scitechdaily.com/scientists-tricked-neurons-into-thinking-theyre-in-a-real-brain/

https://scitechdaily.com/scientists-discover-a-hidden-brain-clock-driving-bipolar-mood-swings/