[FieldTrip] wpli

[zahra ghanbari]

 I appreciate your time and answer. 
I tried e-mail due to the fact that I could not find the answer in the documentations.Thanks and sorry for troubling. 
    On Tuesday, April 9, 2019, 11:36:13 AM GMT+4:30, Schoffelen, J.M. (Jan Mathijs) <jan.schoffelen at donders.ru.nl> wrote:  
 
 Dear Zahra,
Again, I would like to stress that you need to read the documentation in the code, the code itself and the documentation on the website.Also, I would like to stress that (although I am one of the usual suspects that takes the time to reply to questions on this list), I am not running the list, so everybody is explicitly invited to chime in here. This is not only a nudge to everybody who is reading along, but also a gentle nudge that I’d appreciate not to directly direct e-mails on this list to me in person, unless you have realistic expectations that I am really the only one who can provide an answer.
Best wishes,Jan-Mathijs



On 9 Apr 2019, at 08:13, zahra ghanbari <zahraghanbari at yahoo.com> wrote:
Dear Jan-Mathijs;
I am sorry for troubling. Is it possible to use ft_connectivityanalysis with a "data" input which is not an output of the ft_preprocessing function?Indeed I have an EEG time series in 16 channels. Filtering and denoising has been applied on it. Would you please tell me how to use this signal?Thanks again.
Sincerely,Zahra Ghanbari.    
On Thursday, April 4, 2019, 11:14:17 AM GMT+4:30, Schoffelen, J.M. (Jan Mathijs) <jan.schoffelen at donders.ru.nl> wrote:

Hi Zhara,

Hi;I have two questions: 1- I am trying to use ft_connectivity_wpli to calculate wpli between EEG signals recorded in 16 channels.Could you please help me with the inputs (Repetitions x Channel x Channel (x Frequency) (x Time))?It there any example or description which clarifies the inputs?

Please use ft_connectivityanalysis with cfg.method = ‘wpli’, and an appropriate fieldtrip-style data structure, containing fourier coefficients (i.e. output of ft_freqanalysis with cfg.output = ‘fourier’);
Otherwise, if you insist on using the lower-level function ft_connectivity_wpli, please read the documentation.

2- It there any MATLAB code available for the experiments of "An improved index of phase-synchronization for electrophysiological data in thepresence of volume-conduction, noise and sample-size bias(2011)”. 

I don’t understand: this is the ‘wpli’ method.
Jan-Mathijs




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J.M.Schoffelen, MD PhD
Associate PI, VIDI-fellow - PI, language in interaction
Telephone: +31-24-3614793Physical location: room 00.028Donders Centre for Cognitive Neuroimaging, Nijmegen, The Netherlands



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