[FieldTrip] phase distribution

Bastiaansen, Marcel Bastiaansen4.M at nhtv.nl
Fri Dec 16 13:13:39 CET 2016

Dear Fieldtrippers,

I want to analyze data from an EEG experiment in which I split trials from one participant in two sets based on some response criterion.
I want to know how (absolute) phase at a particular point in time (say t=0) is distributed within each set of trials, and whether there is (on average) a difference in absolute phase between the two sets of trials.
I have found a matlab toolbox (circ_stats) that allows me to plot circular phase data, do tests on phase distributions, and to compare two distributions, but I would like to use Fieldtrip to extract the instantaneous phase angles (radians or degrees) from the single trials for a given point in time using multitapers (which I believe is the preferred method for this, right?).
Browsing through the Fieldtrip discussion archive, I haven't been able to find a dedicated Fieldtrip function for that, but I am sure that functions such as  ft_mtmconvol do compute absolute phase at some point...
Can anyone give me advise on how to achieve my goal?


Dr Marcel C.M. Bastiaansen
Lecturer and researcher in quantitative research methods
Academy for Leisure & Academy for Tourism
NHTV Breda University of Applied Sciences
Visiting adress:
Room C1.011, Academy for Leisure
Archimedesstraat 17,
4816 BA, Breda
Phone: +31 76 533 2869
Email: bastiaansen4.m at nhtv.nl<mailto:bastiaansen4.m at nhtv.nl>


Department of Cognitive Neuropsychology
Tilburg School of Social and Behavioral Sciences
Tilburg University
Visiting address:
Room S217, Simon building
Warandelaan 2
5000 LE Tilburg
Email: M.C.M.Bastiaansen at uvt.nl<mailto:M.C.M.Bastiaansen at uvt.nl>


Op deze e-mail zijn de volgende voorwaarden van toepassing :
The following disclaimer applies to the e-mail message :
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.science.ru.nl/pipermail/fieldtrip/attachments/20161216/3a3d1a7d/attachment-0001.html>

More information about the fieldtrip mailing list