News

Brain researchers receive a Christmas gift: New MEG device enables more accurate measurements and recycling of helium

The previous MEG device served researchers for over 20 years.
MEG-laite
Measurements can be made with an accuracy of milliseconds i.e. one thousandths of a second, Veikko Jousmäki tells. Photo: Mikko Raskinen / Aalto University

In mid-November, a long-awaited delivery arrived at the MEG Core laboratory in the Otaniemi campus of Aalto University.

‘We are happy to open our Christmas present a little early’, says Senior Scientist Veikko Jousmäki, director of the Aalto NeuroImaging research infrastructure.

The boxes contained a next-generation magnetoencephalography (MEG) device. It measures the magnetic fields generated by the electrical activity of the brain. In other words, it measures the information processing in the brain. Measurements can be made with an accuracy of milliseconds i.e. one thousandths of a second. 

The device has been approved for clinical use. In Aalto University, it will be used, e,g., to investigate how hearing, seeing, and touch are processed in healthy test subjects.

In hospitals, similar devices are used, e.g., for epilepsy diagnostics and preoperative evaluations to locate functional landmarks. The research results at Aalto University can also be utilised in clinical work. Research groups are in particularly close cooperation with researchers from the University of Helsinki and Helsinki University Hospital.

‘The new MEG device enables more accurate and versatile measurements. It is also less susceptible to interference’, Jousmäki says.

Huone, jossa heliumia kierrätetään
The internal liquid helium recycling eliminates the need to purchase helium separately, which is also important for sustainable development. Photo: Mikko Raskinen / Aalto University

Finnish know-how

The development of MEG technology began in the Low Temperature Laboratory of the Helsinki University of Technology. This research also led to the founding of the MEG vendor Neuromag Oy, known today as MEGIN Oy.

The first whole-head MEG device was introduced in the Brain Research Unit of the Low Temperature Laboratory in 1993. The MEG device was upgraded to a newer version in 1998 and the next minor update took place in 2008. MEG Core, which is a part of the Aalto NeuroImaging research infrastructure, continues this research tradition at Aalto University.

MEGIN Oy, the supplier of the new device, is the market leader in its field, having manufactured about half of the roughly two hundred MEG devices currently in use around the world.

In addition to improved sensors, the device also has better usability. The internal liquid helium recycling eliminates the need to purchase helium separately, which is also important for sustainable development.

Aalto NeuroImaging is one of Aalto University's major research infrastructures. Aalto NeuroImaging works on the principles of open access in teaching and research. MEG Core also participates in the training of new MEG users together with MEGIN Oy.

Aalto NeuroImaging is included in the Academy of Finland’s roadmap of national research infrastructures 2021–2024 as part of the Euro-BioImaging Finland consortium. MEG Core will open up MEG technology for wider use through the pan-European Euro-Bioimaging infrastructure.

http://ani.aalto.fi
http://eurobioimaging.eu
http://eurobioimaging.fi

 

Read more:

A detail of an exhibition on quantum technology at Aalto University, photo by Mikko Raskinen

The Academy of Finland decided on roadmap for research infrastructures

Aalto University is involved in ten research infrastructures selected for the national roadmap for 2021–2024, which support the university's seven research areas.

News
Brain

Finnish Biomedical Imaging Node Accepted to the Euro-BioImaging Research Infrastructure

Finnish Biomedical Imaging Node FiBI has been accepted as a service-providing Node to the pan-European Euro-BioImaging consortium for imaging technologies

News
  • Published:
  • Updated:
Share
URL copied!

Read more news

Image and photo by Aalto University, Giulnara Launonen. MMD logo by Aalto University, Mithila Mohan
Research & Art Published:

Multifunctional Materials Design: Highlights of 2022

Our group's milestones of the previous year
Utuinen ihmishahmo näyttää kävelevän pois päin, varjo heijastuu vaalealle pinnalle
Research & Art, Studies, University Published:

Master's students' exhibition at the Finnish Museum of Photography

The MoA in Photography 23 exhibition by the Master's students of the Department of Photography is on display until 12 March.
Nainen rannalla tuulisella säällä hymyilee, taustalla meri kuohuaa
Appointments, Research & Art Published:

Professor Ranja Hautamäki: ‘Diverse urban nature is key to increasing well-being and carbon sinks’

Professor of Landscape Architecture is tackling the issues of climate change mitigation and urban carbon sinks.
NASAn Curiosity-mönkijä kuvaama pölypyörre Marsin Gale-kraatterissa. Kuvankäsittely: Henrik Kahanpää. Alkuperäinen kuva: NASA / JPL-Caltech
Research & Art, Studies Published:

On Mars the weather varies dramatically, however the planet’s climate is not changing

The doctoral dissertation of Henrik Kahanpää also questions a prevailing perception related to dust devils on Mars. As a researcher, he hopes that humans would never go to Mars.