[Eeglablist] eeglablist question

[Bert Vandenberghe]

Hello

For ICA decomposition, I read on your wikipage that you need at least (#channels^2*30) data points to perform ICA on epoched data.
If not, ICA on continuous EEG is preferable.

In my case, I use 64 electrodes.
Does that mean that 4 minutes of epoched data would suffice in order to perform ICA ?

I.e., 64^2*30 = 122880 data points

If you sample at 512 Hz:

512*240seconds=122880 data points

Is this a correct way of reasoning for deciding to perform ICA decomposition on epoched data ?

Thank you for your advice

Bert
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