Will we ever transmit thoughts telepathically from one brain to other?

There’s tantalising evidence that technology could one day allow us to transmit thoughts telepathically between two brains. The question is how far can we go?

In a lab at Harvard Medical School, a man is using his mind to wag a rat’s tail. To send his command, he merely glances at a strobe light flickering on a computer screen, and a set of electrodes stuck to his scalp detects the activity triggered in his brain. A computer processes and relays the electrodes’ signal to an ultrasound machine poised over the rat’s head. The machine delivers a train of low-energy ultrasound pulses into the rat’s brain,
stimulating its motor cortex – the area that governs its movements. The pulses are aimed purposely at a rice-grain-sized area that controls the rat’s tail. It starts to wag.
This ldea is the brainchild of Seung-Schik Yoo, and it works more than 94% of the time. Whenever a human looks at the flickering lights, the rat’s tail almost always starts to wag just over a second later. The connection between them is undeniably simple. The volunteer is basically flicking a switch in the rat’s brain between two positions – move tail, and don’t move tail. But it is still an impressive early example of something we will see more of in coming years – a way to connect between two living brains.

How can we achieve this?
The first step would be to decode what someone is thinking. Neuroscientists have made substantial progress in deciphering images from patterns of brain activity, and several groups are working on decoding inner speech. People have managed to commandeer computer cursors, artificial limbs and virtual drones through brain-computer interfaces (BCI), which use brain activity to control man-made devices. But to achieve true telepathy, brain activity has to be decoded and used to influence another brain. “We’ve got brain-to-computer interfaces, but we need the other side of it – computer-to-brain interfaces,” says Yoo
     So with the advancements happening in the area of brain mapping we can expect transmitting our thoughts from one brain to other.soon.