How do i simulate EEG signals with different signals in different scouts

Discussions
,
16

Different source orientations and depth have different sensitivities to EEG.
Not all the regions of the cortex are visible uniformly in EEG.
Read some background literature in electromagnetic source modeling if these concepts are not familiar to you.

Things you can do to understand better what is going on in an experimental way:

  • Use larger scouts for your simulations, so that for each source you have various source orientations and depth
  • Test with different orientations and depths
  • Add noise, compute a noise covariance matrix from the simulated EEG, and use it to estimate the sources
  • Look at normalized maps (dSPM, sLORETA or Z-score)
1 Like