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About NatMEG

NatMEG is the first and only research laboratory in Sweden for whole-head measurements of neuronal brain activity using magnetoencephalography (MEG). The NatMEG lab was inaugurated in October 2013, and is one out of only approximately 200 active MEG labs worldwide.

Since 2024, we have the worlds largest on-scalp MEG system that uses optically pumped magnetometer (OPM) sensors, a new type of quantum enhanced sensors that can measure closer to the scalp than conventional MEG sensors.

For contact details, booking, etc. see natmeg.se where you also find a video introduction to MEG, and lectures from leading researchers on theory and concepts and data analysis.

Sections

  • Data acquisition - overview of the two-person recording workflow and links to preparation and acquisition procedures.
  • Equipment - stimulus, response, and support equipment used in the lab.
  • Software - analysis software, preprocessing tools, and file-management utilities used at NatMEG.
  • Presentation - NatMEG-specific notes and example scripts for the Presentation stimulus software.
  • Preprocessing - starting points for SESHAT- and MaxFilter-related preprocessing routes.
  • BIDS - NatMEG-specific notes for converting MEG data to BIDS.
  • MEEG analysis - analysis toolboxes, learning resources, and practical tips.
  • Legacy documentation - older server and acquisition notes kept for reference.

Analysis software

Most scripts used at NatMEG rely on one of two well-documented and free software tools available for analysis of MEG and EEG data: