Continuous Monitoring of Human Physiology with Wearable Tattoo Electronics

In this insightful presentation, Todd Coleman explores the cutting-edge field of brain-computer interfaces (BCIs) and wearable electronics, highlighting their transformative potential in enhancing human-computer interaction and personal well-being. Coleman delves into the practical applications of BCIs, such as controlling devices with brain signals, and introduces the concept of collaborative BCIs for remote cooperation. He also discusses advancements in wearable electronics, particularly epidermal devices that integrate seamlessly with the human body, and their integration with augmented reality for comprehensive health monitoring. The talk concludes with a vision for the future, emphasizing interdisciplinary collaboration and innovation in the field.

Introduction to Brain-Computer Interfaces

00:00:00 - 00:01:23

Todd Coleman introduces his background in electrical engineering and neuroscience, setting the stage for his work on brain-computer interfaces (BCIs). He describes BCIs as systems that create a direct communication pathway between the brain and external devices. An example is given of a person using a BCI to move a ball on a screen by imagining left or right movements. Coleman highlights a common misconception in the field: the bottleneck is not just about extracting more information from the brain, but about designing effective feedback systems. This segment is engaging as it challenges the traditional view of BCIs, emphasizing the importance of the interaction between human cognition and computer feedback. The use of a simple yet illustrative example of moving a ball makes the concept accessible and underscores the potential of BCIs in enhancing human-computer interaction.

Applications and Challenges of BCIs

00:01:23 - 00:03:58

Coleman delves into practical applications of BCIs, such as navigating a wheelchair or flying a remote-controlled airplane using brain signals. He explains the engineering and statistical signal processing involved in these tasks, emphasizing the simplicity and user-friendliness of the systems. The segment is particularly compelling due to the real-world applications demonstrated, such as flying an airplane over cornfields using brain waves. This example not only showcases the potential of BCIs but also highlights the importance of minimal user interfaces in achieving complex tasks. The discussion on user feedback and interface design is crucial, as it points to the need for intuitive systems that can interpret and respond to human cognitive processes effectively. This part of the talk is engaging because it combines technical depth with imaginative applications, illustrating the transformative potential of BCIs in everyday life.

Collaborative Brain-Computer Interfaces

00:03:58 - 00:05:00

The concept of collaborative BCIs is introduced, where multiple users work together to achieve a common goal. Coleman describes a project involving participants from different locations using BCIs to cooperatively zoom in on a map. This segment is fascinating as it explores the potential of BCIs to enhance human collaboration, effectively allowing two individuals to function as one in a task. The example of users in Puerto Rico and San Diego working together demonstrates the scalability and versatility of BCIs in facilitating remote cooperation. This part of the presentation is particularly novel as it extends the application of BCIs beyond individual use, suggesting future possibilities in team-based environments and complex problem-solving scenarios. The integration of neuroscience, applied mathematics, and user interface design is highlighted as essential for the success of such systems.

Advancements in Wearable Electronics

00:05:00 - 00:06:56

Coleman discusses the development of epidermal electronics, which are flexible, skin-mounted devices that can monitor various physiological signals. He explains the process of creating these devices by peeling off the functional layer of silicon wafers and mounting them onto flexible substrates. This innovation bridges the gap between rigid electronic circuits and the soft, elastic nature of biological tissues. The segment is intriguing due to its potential to revolutionize wearable technology, making it more integrated with the human body. The use of temporary tattoos to apply these electronics is a compelling example of how technology can be seamlessly incorporated into daily life. This advancement not only enhances the functionality of wearable devices but also opens new avenues for monitoring health and well-being in a non-intrusive manner. The discussion is engaging as it presents a futuristic vision of technology that aligns with the natural form and function of the human body.

Integration of Wearable Sensors with Augmented Reality

00:06:56 - 00:09:00

The integration of wearable sensors with augmented reality devices like Oculus Rift and Google Glass is explored. Coleman introduces the concept of 'glucose glass,' a project aimed at helping diabetes patients monitor their physiological responses to food intake. By combining data from wearable sensors and augmented reality, users can gain insights into their health and make informed decisions. This segment is particularly engaging as it demonstrates the potential of combining different technologies to create comprehensive health monitoring systems. The example of using Google Glass to analyze food intake and correlate it with physiological data is a powerful illustration of how technology can enhance personal well-being. This approach not only provides real-time feedback but also supports users in managing their health more effectively. The discussion highlights the importance of user-centered design in developing tools that are both functional and accessible.

Conclusion and Future Directions

00:09:00 - 00:10:07

In the concluding segment, Coleman reflects on the progress and future potential of his research group. He emphasizes the importance of interdisciplinary collaboration in advancing the field of BCIs and wearable technology. The talk ends with a nod to the students and collaborators who contribute to these innovations. This part of the presentation is inspiring as it underscores the collective effort required to push the boundaries of what is possible with technology. The mention of ongoing projects and future directions provides a sense of continuity and excitement for what lies ahead. The conclusion is engaging as it leaves the audience with a vision of a future where technology is seamlessly integrated into everyday life, enhancing human capabilities and well-being. The emphasis on collaboration and innovation serves as a call to action for researchers and practitioners in the field.