Incredibly Ingenious: Japanese Inventions You Can't Find Elsewhere

6. Robot with Sixth Finger

What It Is: A fake robotic finger created to help scientists learn more about how the brain functions. Average Cost: Not Available for Commercial Sale Scientists in Japan have invented something very surprising. You can wear the robotic sixth finger as an additional digit on either hand next to your pinky finger. This innovation was made by researchers to study the brain, and it moves in the same way as a biological finger would.

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Sixth Finger Robot on YouTube/Reuters These scientists are interested in how the brain responds to autonomous body parts, like a sixth finger. Even though these tests have previously been carried out on prosthetic limbs, an artificial pinky finger has never been used in any of them. The goal of their research is to learn more about how the brain functions in the case of a hand with a different constitution.