June 22, 2024

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Extra Digit Revolution: A “Third Thumb” Unveiled by Cambridge Scientists to Expand Human Capabilities

2 min read
New research out of Cambridge reveals the development of a wearable "Third Thumb", a robotic prosthetic designed to expand human capabilities. This 3D-printed innovation promises to redefine the potential of human machine interface.


In a fascinating development that leads the way towards revolutionary inclusive designs, scientists from Cambridge have crossed another frontier in the realm of prosthetics, doing more than just designing for disability; they are developing “Third Thumb”—a robotic appendage intended to redefine the human capabilities.

There’s an abundance of surreal curiosity around the idea of having an extra finger. Can an extra thumb enhance our native abilities and push the boundaries of what’s ordinarily possible for a human? Suddenly, the prospect of an extra thumb doesn’t seem so outlandish.

The “Third Thumb” is a 3D-printed, customizable, wearable extra digit, designed for anyone wishing to expand their natural abilities. Designed by Dani Clode, a graduate student from Cambridge’s Department of Psychology, the project is not just a remarkable innovation, but a substantial psychological study.

Through a range of motion tests, a study found that users quickly adapt to the extra digit and start using it in daily tasks as though it had always been there. The thumb is controlled by pressure sensors under the user’s feet. Moreover, brain scans conducted post weeks of training and usage revealed increased levels of engagement with their new digit, an indicator of our brain’s impressive adaptability.


We’ve aimed to shed light on how Cambridge Scientists have revolutionized prosthetic technology with the “Third Thumb”. This robotic extra digit is poised to reshape the paradigms of our current understanding of human physical capabilities, through an intricate marriage of technology and psychology. This is not merely about advantage or need, but a radical shift in our perception of the extension and potential of the human body. Would you leverage this innovative breakthrough to extend what your two thumbs can achieve?

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Did you find this breakthrough fascinating? Can you think of additional applications for an extra digit? Leave your thoughts in the comment section. Let’s continue this conversation. Remember to share this blog post across your social media channels and encourage others to engage. It’s time we, as a society, explore and find comfort in the extraordinary possibilities of the future of robotics. Subscribe to our newsletter to stay updated on more groundbreaking developments.

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