'Neuroscientists have successfully hooked up a three-way brain connection to allow three people to share their thoughts – and in this case, play a Tetris-style game.
The team thinks this wild experiment could be scaled up to connect whole networks of people, and yes, it's as weird as it sounds.
It works through a combination of electroencephalograms (EEGs), for recording the electrical impulses that indicate brain activity, and transcranial magnetic stimulation (TMS), where neurons are stimulated using magnetic fields.
The researchers behind the system have dubbed it BrainNet, and say it could eventually be used to connect many different minds together, even across the web.
But apart from opening up strange new methods of communication, BrainNet could actually teach us more about how the human brain functions on a deeper level.
"We present BrainNet which, to our knowledge, is the first multi-person non-invasive direct brain-to-brain interface for collaborative problem solving," wrote the researchers in October 2018.
"The interface allows three human subjects to collaborate and solve a task using direct brain-to-brain communication."
In the experiment set up by the scientists, two 'senders' were connected to EEG electrodes and asked to play a Tetris-style game involving falling blocks. They had to decide whether each block needed rotating or not.
To do this, they were asked to stare at one of two flashing LEDs at either side of the screen – one flashing at 15 Hz and the other at 17 Hz – which produced different signals in the brain that the EEG could pick up on.'
Read more: Brains of Three People Have Been Successfully Connected, Enabling Them to Share Thoughts
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