Connecting the brain and sharing thoughts like telepathy and succeeded in Tetris 3 joint play

by gerlos

Three people connected each brain and succeeded in sharing thought. Three people co-played a block game like Tetris in the experiment and said that they recorded a high success rate. Although it was 3 play this time, it is thought that it will be possible to make it scale up, and it will be possible for multiple players to play together through the network.

[1809.08632] BrainNet: A Multi-Person Brain-to-Brain Interface for Direct Collaboration Between Brains
https://arxiv.org/abs/1809.08632

Scientists Have Connected The Brains of 3 People, Enabling Them to Share Thoughts
https://www.sciencealert.com/brain-to-brain-mind-connection-lets-three-people-share-thoughts

Experiments conducted by researchers at the University of Washington have been conducted with an electroencephalograph (EEG) that records the electrical stimulus that indicates brain activity and a transcranial magnetic stimulation method (TMS) that excites neurons in the brain with a weak current I was told. Researchers used this device called "BrainNet" and ultimately succeeded in connecting three thoughts over the Internet.

"To the best of our knowledge, BrainNet is the first interface that enables multiple people to connect directly to the brain and brain in a non-invasive way in order to solve joint problems." "This interface is the interface between the brain and the brain Through making them communicate directly, three people cooperatively made the tasks solvable, "the researcher says.

In the experiment, two "sender" of the three subjects were connected to the electrodes of the electroencephalograph and played a game that piles down falling blocks like Tetris. At this time, the sender needs to decide whether or not to rotate the block, and when turning it was instructed that "Looking at the LED flickering at 15 Hz or 17 Hz on the left and right of the screen". The electroencephalograph catches different signals born by looking at the light.

by Engin_Akyurt

After that, a signal is sent to the receiver of the TMS cap. Because the recipient can only see the top of the game screen, you can grasp the shape of the block, but I do not know how to rotate it. Under these circumstances, the recipient must follow the ocular flash created in the head by the TMS cap and rotate the block.

Three groups of 5 people conducted the experiment, and the average accuracy level of the first test was 81.25%.

In experiments, the sender can also send feedback to the recipient to complicate the game. In addition, when the sender sent deliberately noise to the signal sent by one of the senders to lower the reliability, it seems that the scene where the recipient deliberately ignored only the signal of one sender was confirmed. Although it is said that only one bit of data can be transmitted at a time of article creation, researchers think that it is possible to extend the system in the future.

by jambulboy

In 2015, the researchers succeeded in linking the brains of two subjects. The paper published in September 2018 has not been reviewed yet and it is not completely reliable. However, the researchers said, "Our research results will increase the feasibility of" brain-to-brain interface "that people can jointly solve problems using the" social network "that connects the brain in the future I will tell you.