The interpretation of signals from the human brain is a challenge. The group »Mobile Neurotechnologies« of the Fraunhofer IDMT in Oldenburg is taking on this challenge in order to make systems for electroencephalography (EEG) available in concrete application scenarios - for example in health applications or at safety-critical workplaces. Insa Wolf's group is particularly working on mobile EEG systems that make the analysis of brain activity suitable for everyday use.