[FieldTrip] Fourier coefficients across tapers

Jose joseluisblues at gmail.com
Thu Sep 19 03:23:28 CEST 2019

dear fieldtrippers,

I'm trying to compare distinct phase-based methods to compute connectivity
for an EEG dataset,

I'm using Fieldtrip to get the analytic signal of my time series, and from
there I compute coherence, inter-site phase clustering, and other phase
lag-based measures in Matlab. I'm running these analyses for frequencies in
the gamma range so I used multitaper in Fieldtrip to compute the Fourier
coefficients. It seems is not possible to average the Fourier coefficients
across tapers. It would be wrong to average across the tappers the Fourier
coefficients? Otherwise, it would be ok to average across the tapers the
values that result from computing, for instance, coherence ? It that

Just to check, are the Fourier coefficients in the "rpttap" columns stacked
by taper?
I mean, do the first 15 columns correspond to the Fourier coefficients that
result from applying the 15 tapers to the first trial?

I would really appreciate some directions here,

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