Forward model constrained orientation

1

Hi,

I am doing forward modeling for simulating EEG activity, I would like to consider only perpendicular orientation of dipoles, How can I make it?

Thanks

2

Perpendicular to the cortex surface?
When computing the inverse model, just select constrained orientations:
http://neuroimage.usc.edu/brainstorm/Tutorials/SourceEstimation#Source_estimation_options