'cannot assign label to a hemisphere'

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1

Hi!

I created a label based on MNE activations (stc file) using
mne_write_label_file:

2

Does mne_forward_solution() assume homogeneous conductivity for magnetic field generation? Thanks.

Don

Don Krieger, Ph.D., D.ABNM
Department of Neurological Surgery
University of Pittsburgh
(412)648-9654
(412)606-2189 Cell

3

Hi Elena,

did you name your label "xxx-lh.label" or "xxx-rh.label" ?

Alex

4

mne uses a BEM for forward modeling. You can use a 1 layer or 3 layers volume
conductor for both EEG and MEG.

hope this helps

ALex

5

To expand a little:

The 1 layer is indeed a homogeneous conductor. While the three layer allows for three different concentric layered homogeneous conductors. It does NOT (to the best of my knowledge) support varying the conductivity in any other way i.e. non-layered (or voxel based), conductivity tensors i.e. conductivity with preferential direction as in Tuch et al. 2001.

D