[FieldTrip] Fieldtrip compatibility

Robert Oostenveld r.oostenveld at donders.ru.nl
Mon Jan 4 09:16:28 CET 2016


Dear Saeed,

Happy New Year.

FieldTrip can be used for channel level time series analysis and forward and inverse volume conduction modelling of ExG. The typical application (besides MEG, i.e. magnetic measurements of brain activity) is EEG, but we also use if for intracranial EEG and for EMG. I see no reason why EHG would not work. The way you have your data represented in files on disk might be different than what is common for EEG, but see here http://www.fieldtriptoolbox.org/dataformat. This should not be too hard to deal with.

The more important difference might be in the assumptions on the sources that are required for the inverse modelling. In EHG I presume you will be interested in localizing the contractions of the uterus. That is muscle activity which propagates (i.e. changes spatially over time), which may have different characteristics than the activity that we model in the brain. Also this is something that can be dealt with, but it is not merely a technical detail and it requires careful consideration of the inverse model assumptions.

I know that Ahmad Diab (who I suppose is a colleague of yours) used FieldTrip for his thesis https://tel.archives-ouvertes.fr/tel-01237525/document. I suggest you look at details there and consult Ahmad.

best regards,
Robert
 


On 03 Jan 2016, at 00:49, saeed zahran <saeedzahran at hotmail.com> wrote:

> Dear Fieldtrip team,
> 
> Hope you are well and in good health,
> 
> I am a PhD student in Compiegne University, working on "source localization and connectivity study of the sources of uterine activity for the prediction of the preterm labor''.
> 
> The uterine electrical activity, measured noninvasively on the woman's abdomen by means of surface electrodes is referred to as the electrohysterogram (EHG= uterine electromyogram).
> 
> We have the meshes of the uterus layers segmented from MRI, and we have a database for real pregnancy and labor signal. My question is does Fieldtrip toolbox able to deal with my data?
> 
> Best regards,
> Saeed Zahran
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> fieldtrip at donders.ru.nl
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