[Eeglablist] [How to] Phase synchronization and Filter type

[arno delorme]

Dear Lee,

according to the literature, standard values for the number of cycles  
at gamma (30-150Hz) are from 6 to 12.
Prior filtering (unless you are using a hilbert transform) is probably  
unnecessary.
To reduce noise you may also want to use the multitaper option which  
is available from the command line in the timef() function.

Best regards,

Arno

On 8 juin 08, at 09:57, TH Lee wrote:

> Dear Collegues
>
> These days, I've tried to analyze the Phase synchronization of my  
> EEG data (1000Hz sampling rate).
> Especially, i concered about Gamma band synchronization.
> For choosing optimal parametic value, i've read almost references in  
> relation to this issue.
> But still i can't find the optimal parametic value to analyze the  
> data.
> Because, according to aurthor, they aplied filter type differently.
> For instance, some aurthor used Kaiser type FIR filter for  
> filtering. However, the other used Hannning type FIR window.
> So i can't decide the analyzing procedure.
>
> Please let me know the best parametical choice for analyzing in  
> EEGLAB (e.g., Filter Type, Sampling rate, window length. etc)
> Thanks
>
>
> Lee
>
>
> _______________________________________________
> Eeglablist page: http://sccn.ucsd.edu/eeglab/eeglabmail.html
> To unsubscribe, send an empty email to eeglablist-unsubscribe at sccn.ucsd.edu
> For digest mode, send an email with the subject "set digest mime" to eeglablist-request at sccn.ucsd.edu

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://sccn.ucsd.edu/pipermail/eeglablist/attachments/20080613/b693363c/attachment.html>