[Eeglablist] ERSP time limit?

[Bradley Voytek]

The cutting off of the edges is forced by your lowest frequency band of
interest because EEGLAB using a sliding-window technique for estimating
power by frequency band. If you set the lowest frequency to 8Hz, you'll
have a much wider window. If you set it to 1 Hz your window will be much
shorter because EEGLAB needs more temporal data to estimate power (at least
1 full cycle of 1 Hz = 1 second widow).

::brad

On Wed, May 2, 2012 at 9:05 AM, <jekline at umich.edu> wrote:

>
> Hi, I have a odd question. I have been making ERSP plots for my ICs through
> the GUI.
>
> I created epochs 5 seconds before and 5 seconds after an event. When I plot
> ERSPs for these epochs, the time limits on the ERSP plots are from -4 to 4
> seconds. Does anyone know why the plot doesn't show the whole ten second
> epoch? Is 8 seconds the upper limit for an ERSP plot? Thanks.
>
> -Julia Kline
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