I am physicist by training and received my D.Sc. (tech.) degree from Helsinki University of Technology (HUT) in 1989. Until 2001 I worked at the Low Temperature Laboratory of HUT and studied modeling and signal analysis methods for magnetoencephalography (MEG) and implemented a lot of the software. I was also a member of the core team developing multichannel MEG systems, made commercially available by Neuromag Ltd. In 2001 I moved to the Martinos Center at Massachusetts General Hospital / Harvard Medical School where I hold an appointment of Associate Professor of Radiology. At MGH, I had the main responsibility of the development of MEG/EEG analysis tools (the MNE software), which employs structural and functional MRI information provided by FreeSurfer and other software packages as additional constraints. This software is now used in many MEG centers worldwide. I work in close collaboration with several neuroscientists and clinicians to conduct MEG/EEG experiments in both healthy and diseased populations.