Neuro Technology Laboratory

The NeuroTechnology Lab is a research laboratory hosting activities within a broad spectrum of technologies related to the human nervous system. This includes measuring on and modelling of the nervous system, innovating and engineering novel interfacing technologies, applying advanced signal processing and machine learning methods for electrophysiological signals primarily from the central and peripheral nervous system, and facilitate experimental research within this field. The Laboratory is headed by Senior Associate Professor Preben Kidmose, and currently three PhD students and two postdoctoral researchers are associated with the lab.

Facilities

The lab is equipped with instruments for biosignal recordings, custom build equipment for specific experiments, and conventional electronic lab instruments. There are more or less permanent setups for measuring auditory and visual evoked potentials and for brain-computer interface experiments, but the setups are intended to be flexible and can easily be rearranged and adapted to specific needs. Some of the equipment is listed below:

  • 64 channel biosignal recording setup with both passive and active electrodes. The setup comprises 4 gtec USBamp, 6 gtec GAMMAbox preamplifiers, 1 gtec TRIGGERbox, and caps with LADYbird electrodes.
  • Portable systems (battery powered, suitable for recording outside the lab):
    • 32 channel TMSi Mobita recorder, including various caps (active guarded) and front-end for customized systems.
    • 6 EGI Avartar recorders (8 channel recorders).
  • Equipment for manufacturing of individualized earpieces. This comprises equipment for making wax impressions, 3Shape Legato II impression scanner including software suite for scanning and modelling of earpieces, and various equipment and tools for prototyping and integrating electro-mechanical components into earpieces.

Scope and Purpose

The purpose of the lab is to facilitate applied and experimental research within technologies for interfacing to the human nervous system. In particular there is a focus on wearable systems that are feasible for recording over long periods of time and with integration with other sensor modalities.  

Technologies researched covers medical, neuroscience, professional and consumer applications. Within the medical area the technologies can be applied for diagnosing and monitoring of diseases, for assistive devices used in rehabilitation, and for management and monitoring of chronical diseases. Technologies for monitoring of mental, physiological or psychological states in natural environments and over long periods of time is a long standing imperative within neuroscience. Fatigue monitoring and estimation of attention or working memory capacity are of high relevance in many professional applications. And finally, sleep monitoring, estimation of affective states or cognitive training through neuro-feedback are examples of possible future consumer applications.

Current research projects

  • EarEEG based Hypoglycemia alarm
    The project is funded by the Danish Advanced Technology Foundation (Danish: Højteknologifonden). Budget: 20.4 Mdkk (2.7 M€). Partners: AU, Odense University Hospital, Widex and Hyposafe.

    The project is developing a dry-contact EarEEG platform. This comprises the earpiece, the electrode and electrode materials, and the necessary electronic instrumentation. The project will establish a technological and clinical proof-of-concept for an EarEEG based hypoglycemia alarm device by developing a functional device prototype and demonstrate that this device can detect hypoglycemic seizures.

    Click here to read more about the project

  • Neuro 24|7: Neurotechnology for 24/7 mental state monitoring
    The project is funded by the Danish Council for Strategic Research (Danish: Det Strategiske Forskningsråd). Budget: 6.78 Mdkk (0.91 M€). Partners: DTU, AU, Roskilde Hospital and Hyposafe.

    The project is researching methods for long term monitoring of brain activity based on two comfortable devices developed by the company Hyposafe and Aarhus University, respectively. The Hyposafe device consists of an implanted device, while the EarEEG device developed at Aarhus University monitors brain waves non-invasively via electrodes in the ear.  The project is also incorporating the “smartphone brain scanner” developed at DTU, and the combined system is incorporating data collected in the smartphone and in neuroinformatics databases, to increase the precision of mental state recognition.

    Click here to read more about the project

  • Gustatory evoked potentials for assessment of sweet, salt and fat tastes
    PhD project funded by DuPont Nutrition BioSciences and GSST AU. Partners:  DuPont, AU and University of Southern Denmark (Danish: Syddansk Universitet).

    The project aim to develop methods, complementing physical measurements and data from sensory panels, with gustatory evoked potentials obtained via high-density EEG recordings, for evaluation and development of food ingredients.

    Click here to read more about the project