[Eeglablist] Epoching eeg data

[Makoto Miyakoshi]

Dear Karlo,

If you want to epoch your data into 3-min blocks, for example, put event
markers every 3 minutes then epoch the data.

ICA does not care temporal continuity of the data since it shuffles them up
differently for every iteration as a preprocess. That means, if the total
number of datapoints are the same before and after the epoching, the ICA
results should be the same.

Makoto


2013/6/3 karlo gonzales <thats_karlo at yahoo.com>

> Dear EEGlab experts,
>
> I need you help regarding an eeg data files which was recorded during eye
> closed state (15 min long).  Thus, there is no event to epoch the data. 1)
> How do you epoch such data?  2) should we epoch data before running ica
> (dose more epoch means better results?)
> Thanks in advance
>
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-- 
Makoto Miyakoshi
Swartz Center for Computational Neuroscience
Institute for Neural Computation, University of California San Diego
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