[FieldTrip] where is the inverse operator?
jan.schoffelen at donders.ru.nl
Tue May 15 11:29:51 CEST 2012
Each dipole location has a spatial filter, and each dipole is defined in 3D, hence the 3xchannels per dipole location.
On May 15, 2012, at 11:18 AM, Elena Orekhova wrote:
> 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?
> 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'.
> 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!
>> fieldtrip mailing list
>> fieldtrip at donders.ru.nl
> 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
> Telephone: +31-24-3614793
> fieldtrip mailing list
> fieldtrip at donders.ru.nl
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
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