Incredibly Ingenious: Japanese Inventions You Can't Find Elsewhere
6. Robot with Sixth Finger
What It Is: A Fake Robotic Finger for Brain Research
Average Cost: Not Available for Commercial Sale
In a surprising innovation, scientists in Japan have developed a robotic sixth finger that can be worn next to the pinky on either hand. This unique device mimics the movement of a biological finger, making it an intriguing tool for research.
The primary purpose of this robotic finger is to help scientists gain deeper insights into how the brain functions, particularly in relation to motor skills and finger coordination. By studying the interactions between the robotic finger and the user's brain, researchers hope to uncover valuable information that could advance our understanding of neural processes.

Source: Sixth Finger Robot on YouTube/Reuters
Scientists are exploring how the brain responds to autonomous body parts, such as a sixth finger. While similar tests have been conducted on prosthetic limbs, this is the first time an artificial pinky finger has been utilized in such research.
The goal of this innovative study is to gain insights into how the brain functions when presented with a hand that has a different anatomical configuration. By examining the brain's responses to the robotic sixth finger, researchers hope to uncover new information about neural adaptability and motor control.