[FieldTrip] PLV on sources

Narayan Puthanmadam Subramaniyam narayan.ps at tut.fi
Fri Aug 24 14:35:40 CEST 2012


i was thinking of doing the same thing exactly. Computing plv on the eeg inverse solution. technically it should be possible going by the general level concept of phase locking. but i am not sure so let the experts here speak.


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-----Original Message-----
From: Robert Brown
Sent:  24:08:2012, 11:38 
To: fieldtrip at science.ru.nl
Subject: [FieldTrip] PLV on sources

Dear Fieldtrippers,

I see (from the ft_connectivityanalysis code) that one cannot run phase
locking (PLV) analysis (a la Lachaux et al) on source data.

My brain still insisted on trying to do so but unfortunately I am not sure
if it is clever enough. Hope you can help!

It seems that a way to go would be to do LCMV beamforming on the data, get
the virtual electrodes, then run freqanalysis with fourier output on these
virtual electrodes and then perform PLV on those data.

Before I dig myself very deep into this, maybe some experts here could
guide me: Would this approach work? Any possible caveats? Are there maybe
other, better and more straightforward ways for achieving the PLV on source

Any comments would be appreciated. Thank you very much for your time!

Kind regards,

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