The NAFAS project, led by Zander Labs, aims to simplify communication between humans and machines. Among other things, the goal is to enable artificial intelligence to understand human reasoning based on brain activity. In January, Zander Labs provided a project update and unveiled their first fully integrated passive brain-computer interface (pBCI) to detect cognitive loads in brain activity based on an electroencephalogram (EEG) and then adapt user interfaces in real time.

In recent years, the “Mobile Neurotechnologies” group at Fraunhofer IDMT in Oldenburg has focused on developing EEG electrode systems for everyday use outside of laboratories and clinics. For the BCI applications in the NAFAS project, the researchers have specifically refined their patented electrode patches (“trEEGrids”) worn on the face for unobtrusive and comfortable recording of brain signals. The quick and easy application, combined with high signal quality, opens up new possibilities for the practical use of EEG—as being pursued by Zander Labs.

Innovative electrode patches as a key component for BCI

The researchers adapted both the electrode placement and the design of the EEG patch to the specific application scenarios in the NAFAS project. This included expanding the system to incorporate electrodes on top of the head. Central to this effort was the systematic evaluation of different electrode types and conductive materials to achieve the best possible and most robust signal-to-noise ratio. In addition, the patch’s layered structure was modified with a view toward more cost-effective production processes.

“The work in the NAFAS project is an important milestone for us on the path to bringing EEG technology from the lab into everyday life,” says Dr.-Ing. Insa Wolf, Head of Mobile Neurotechnologies at Fraunhofer IDMT. “We are very pleased that our electrode patches, for which we have just successfully obtained a patent, will find their way into concrete BCI applications.”

Zander Labs also describes the collaboration positively. “Through their work on the mobile EEG system, Fraunhofer IDMT has made a significant contribution to achieving the milestones of the first NAFAS project phase and have already played a significant role in the success of the overall project,” says Jonathan Zwaan, co-founder and CEO of Zander Labs.

NAFAS is funded by the Agentur für Innovation in der Cybersicherheit GmbH (Cyberagentur) and, with a funding volume of 30 million euros for a four-year project, is the largest individually funded research project in the European Union. It is expected to be concluded in November 2027.