MegMasterClass - Meg Wiki

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MEG MasterClass

The MEG Master Class tutorial series combines theoretical discussions with practical sessions on many aspects of MEG data analysis using SPM. Working from the SPM example pathway each processing step is split into a small two hour practical. See links below for individual session notes and worksheets.

Please note that these sessions do not cover max filtering of the data set - this can be done as shown at the start of the SPM example pathway script and more details on the processing options are available here.

Session 1. Pre-processing

  • Importing raw FIF data Into Matlab.
  • Spliting in Mags, Grads and EEG data sets.
  • Reading the Trigger line and extracting the triggers and response codes (also see here).
  • Epoching.
  • Resynching to a new starting point.
  • Filtering.
  • Artefact rejection.
  • Contrasts.
  • Grand averaging.
  • Inspecting the results - topographies, line plots, meg_viewdata.

Session 2. 3D Sensor SPM's