Brain-Computer Interfaces — Controlling a Computer With Only Your Thoughts?

Sarah N.
The Startup
Published in
13 min readDec 16, 2020

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An intro to how they work and how they’re being used.

Image from Premier Health

Part 1 — types of BCI’s + how they work

Part 2 — inner workings of the brain

Part 3 — current projects + the future

Whenever you use technology, there’s a middle step.

You need a keyboard to type, a mouse to move a cursor, and a remote to control that animal toy you had as a kid.

But imagine a world where the middle layer didn’t exist; you could control these devices with just your thoughts.

It might sound crazy now, but an exciting emerging technology could make it a reality.

Brain-computer interfaces (BCI’s), have the potential to make this possible by essentially cutting out the middle step — and leaving you to control devices with your mind alone.

What Are Brain-Computer Interfaces?

Brain-computer interface = a device that allows a person to communicate with machines by means of only brain activity. Also known as brain-machine interface (BMI).

Like the name suggests, BCI’s enable the brain to interface with a computer. It’s essentially a device that allows you to talk to a machine with…

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Sarah N.
The Startup

Thinking about the distant future and ancient past.