With a system called BrainNet, it became possible for 3 human subjects to establish direct communication between their brains and collaborate.

In the experiment, a combination of electroencephalograms (EEGs) to record electrical impulses indicating brain activity was operated together with transcranial magnetic stimulation (TMS), where neurons are stimulated using magnetic fields. Heather Wessel, a recent graduate with a bachelor’s degree in Psychology from the University of Washington, and Savannah Cassis, an undergraduate student in Psychology, sent information about a Tetris-like game from their brains over the internet to UW psychology graduate student Theodros Haile, and it was observed that Haile could control and modify the game with his mind. Thus, Wessel and Cassis helped a third person (Haile) solve a task using only their minds. It is thought that this system could be used to connect all human brains together.

Translation: twitter: @AylinERK - instagram: @ayliner Source: medicalxpress.com/news/2019–07-friends-video-game-minds.amp