Twitch Streamer Plays Elden Ring Using Only Her Brain - Kotaku

When you tune into Twitch streamer Perrikaryal’s channel, you might see her playing FromSoftware’s role-playing game epic Elden Ring with fourteen, unfamiliar black sensors stuck to her scalp.

It’s her—as she said during an informational stream earlier today—“just for fun” electroencephalogram (EEG) device, something researchers use to record the brain’s electrical activity, which she’s repurposed to let her play Elden Ring hands-free.

“Okay what and how,” publisher Bandai Namco responded to a clip of Perri (whose name seems to refer to the perikaryon, the cell body of a neuron) describing how she linked brain activity to key binds to help her play the game, shared by esports reporter Jake Lucky on Twitter.

It does look incredible—in the clip, you see Perri simply say “attack” to her screen like a gamer girl Matilda and then, after a short delay, her Elden Ring character responds by casting Rock Sling at an irritated boss.

But I spent my undergrad fixing eye-tracking devices to my friends’ heads while they helped me fill my lab requirements, and I know that, although brain technology can look complicated, some of it was still easy enough for me as a 19-year-old.

Perri also emphasized in her stream today that she isn’t necessarily innovating, but bringing the possibilities of EEG usage to the general public’s attention.