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From implantable devices like pacemakers and brain interfaces to smart wearables, humans are fast becoming more cybernetic than we might realize.��

Implanted devices tend to have higher fidelity and functionality than wearables, but require extremely invasive surgery. Smart tech is lower-cost and easy to use, but can be uncomfortable while offering limited functionality.��

What if there was a middle ground, a set of technologies that allowed for the best of both worlds? Such solutions could enable people to achieve peak performance in a range of physical and mental activities, simplify ongoing health monitoring, and help those with mobility challenges control the devices that support their daily lives.��

A surprising partnership

Researchers at the ATLAS Institute are working on just that through a unique collaboration toward what they call “cybernetic human advancement.”��

Carson Bruns, associate professor (ATLAS Institute, Mechanical Engineering), and��Grace Leslie, associate professor (ATLAS Institute, College of Music), have partnered to study ways to create the functionality of an implantable device with the ease of a wearable.

The project was kickstarted with funding from CU Boulder’s��New Frontiers Grant Program.

This 12-month Planning Phase Award, funded through the Research & Innovation Office (RIO), supports project planning and initial data collection for two lines of inquiry.

Real life sci-fi

Cybernetic humans may sound like science fiction, but such technology is very much a reality. Bruns explains, “When we hear the word ‘cyborg,’ we think of a cyberpunk half-robot. But there are really common examples of body-integrated technology like cochlear implants for the hearing impaired or lens replacements for vision-impaired people or cardiac pacemakers for people who have heart conditions.”

He elaborates, “We're going to continue to integrate our bodies with technology more and more. And we'd like to contribute our own piece to this movement to ensure that it's done in a safe and ethical way, and also because we think it's exciting and there are tremendous potential benefits. So we decided to call this domain ‘human enhancement’ as opposed to ‘cyborg’ or ‘cybernetic.’”

The skin as interface

It’s possible the next generation of wearables will not look like the watches and rings we currently see in the market.��

Bruns says, “One of the things I do in my lab is try to use the skin as the interface for these human enhancements. These technologies that we're going to merge with the body, I think the skin is really the best for that because it's the least invasive place to put a permanent implant. You usually don't even need a doctor or a hospital if it's small enough. You can just tattoo it, and that's something that almost anybody can do safely. So it's very convenient if you're going to permanently implant some technology in your body to make it be a tattoo.”

For example, you wouldn’t want to wear an EKG monitoring cap on your head all day, but if you could get tattooed with conductive materials that connect to a simple device, that could allow for continuous brainwave monitoring without ongoing discomfort.��

Performance enhancing tattoos

Leslie is excited about the possibility of applying her expertise in neuroscience to studying wearables to enhance athletic performance. “We want to work with the CU football team to develop this augmented football player concept using control theory to figure out what the best type of feedback would be to get them in the right state. The really quick decision making they have to do for who to pass to and when, and the movements that they take, will all be optimized.”

In lieu of starting right away with permanent tattooing, the team aims to design with an even more common application in mind.

Leslie continues, “We're thinking of this being almost like a temporary tattoo. Printing a whole circuit board onto that sticker and then any components that we need to add. So it becomes this all-in-one [device] on the surface of the skin. It would be a combination of, on Carson's side, the ability to think of a completely different form factor for a circuit that involves the skin—it isn't just some standalone device that we then try to attach to the human. And then from my lab’s side, the idea of how you can provide meaningful stimulus and feedback in a way that doesn't require a screen.”��

Getting into the flow

Leslie hopes to apply her background in music and audio to create novel sensory stimuli like sounds and haptic feedback (little vibrations similar to what is used in a mobile phone) in place of a screen to help guide people toward achieving a “flow state” of peak performance in a range of activities.

Leslie says, “Haptic feedback is the educational tool that helps you learn what that feels like to be in that state. The principle of biofeedback [is] that eventually if you've practiced it enough, you can reach it without the feedback and then it creates lasting changes.”

Big ideas from new connections

The initial idea for this project started when ATLAS PhD students��Joshua Coffie (in the��Emergent Nanomaterials Lab) and��Daniel Llamas Maldonado (in the��Brain Music Lab) found mutual interest in their respective research areas. Llamas Maldonado explains, “We were in the Research Methods class together, and I thought his research was really cool. We just started talking and thinking we could do something together.”��

From there, the conversation expanded to Leslie and Bruns, who catalyzed the idea by applying for the New Frontiers Grant program. This spark speaks to the importance of fostering opportunities for cross-pollination on campus that can be supported by RIO grants.��

With concurrent lines of research, the key will be to focus the research in this initial phase.��Leslie concludes, “It's easy to think of science fiction scenarios, but the hard part is coming up with concrete experiments to run that will be really self-contained and controlled, and that are going to prove the things that we need to prove to build the larger concept. And that is also the fun part.”