[FieldTrip] corticomuscular and intermuscular coherence

Vries, I.E.J. de i.e.j.de.vries at student.vu.nl
Wed Feb 5 13:38:09 CET 2014


And if this is indeed the case, is there a way to change these settings, e.g. calculate the coherence for each trial separately?


From: Vries, I.E.J. de
Sent: 05 February 2014 13:29
To: fieldtrip at science.ru.nl
Subject: corticomuscular and intermuscular coherence

Dear Fieldtrippers,

I have a small question. When I run a ft_connectivityanalysis with coherence as method on a data set of 90 trials of each 15 seconds, the command window gives the output text that coherence is averaged over rpt (replicates). Besides that, for each trial of 15 seconds, 149 tapers are used.
My question, over which parts is the coherence calculated and then averaged. It seems to me now that first the coherence is calculated over all of the 149 * 90 = 13410 epochs, and then averaged over all of these. Is this the order that ft_connectivity analysis applies? I tried to look it up in the code but got a bit lost there with all the variable names etc...

Thanks in advance,
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