[Eeglablist] Epoch Extraction Timing

Cedric Cannard ccannard at protonmail.com
Mon Mar 22 09:41:14 PDT 2021


Hi,

spectopo is just power spectrum, newtimef is time-frequency, 2 different types of analysis. I have never seen ERSP on such a long period, so it sounds like you want to do a power spectral analysis using spectopo.


Cedric

‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐
On Monday, March 22, 2021 8:39 AM, Krogmeier, Claudia M via eeglablist <eeglablist at sccn.ucsd.edu> wrote:

> Hello List,
>
> I have 6 second events which I will extract and do FFT with.
>
> Would epochs of length -1 to 7 seconds be too large?
>
> These are most likely event-related spectral perturbations (ERSP) because I want to know the alpha activity during stimulus presentation. Would timenewf or newf functions be most appropriate for this time frequency analysis?
>
> I believe spectopo may be more appropriate for resting state EEG, but I am unsure.
>
> Thank you,
> C
>
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