[Eeglablist] Help with difference in the frequency bands

[Jupee]

Dear Sandeep,
I would like share my view regarding ur issue. If the sampling frequency is
known to u, wavelet transform (WT) can be used to divide range into
frequency bands, as maximum frequency is half of sampling frequency by
sampling theorem.
Or,  can use a band pass filter to limit the frequency range & then use WT.

On 24 Nov 2016 8:09 a.m., "Sandeep B" <b.sandeep29 at gmail.com> wrote:

> Dear Colleagues,
>
> I have data of 14 electrodes, with respective to 3 different tasks
> recorded for 2 minutes each.
>
> How do i separate signal for each task into alpha, beta , theta , gamma,
> and delta frequencies. Also how can i look into the differences(or
> difference in percentage level) of each frequency band for the different
> tasks.
>
> is it possible to find the significant channel responsible for the
> different tasks?
>
> Do matlab bandpass filters help in showing up the different frequency
> bands ?
>
> Thank you
> Sandeep
>
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