[FieldTrip] where is the inverse operator?

[Elena Orekhova]

Thank you!

I have dot  source.avg.filter variable as an output.

I guess that the inverse operator should have size of
N-sources x M-channels  and that it should be the same for all the time points.  Am I correct?

The structural variable source.avg.filter, however,  contains 3xNchannels data for each of N-sources. What is it? Are there different inverse operators for different time points?

Elena
________________________________
From: fieldtrip-bounces at donders.ru.nl [fieldtrip-bounces at donders.ru.nl] on behalf of jan-mathijs schoffelen [jan.schoffelen at donders.ru.nl]
Sent: Tuesday, May 15, 2012 9:23 AM
To: Email discussion list for the FieldTrip project
Subject: Re: [FieldTrip] where is the inverse operator?

Hi Elena,

You can specify cfg.mne.keepfilter = 'yes'.

Best,

Jan-Mathijs

On May 14, 2012, at 11:37 PM, Elena Orekhova wrote:


Dear Fieldtrip Developers,

I have one more question.  I try to calculate dSPM values following formula by Dale et al (2000).  For this I need the inverse operator.  I have not found it in the output of the ft_sourceanalysis function. Where can it be found?

Thank you!
Elena
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Jan-Mathijs Schoffelen, MD PhD

Donders Institute for Brain, Cognition and Behaviour,
Centre for Cognitive Neuroimaging,
Radboud University Nijmegen, The Netherlands

Max Planck Institute for Psycholinguistics,
Nijmegen, The Netherlands

J.Schoffelen at donders.ru.nl<mailto:J.Schoffelen at donders.ru.nl>
Telephone: +31-24-3614793

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