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<p class="MsoNormal">Hello<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">For ICA decomposition, I read on your wikipage that you need at least (#channels^2*30) data points to perform ICA on epoched data.
<o:p></o:p></p>
<p class="MsoNormal">If not, ICA on continuous EEG is preferable.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">In my case, I use 64 electrodes.<o:p></o:p></p>
<p class="MsoNormal">Does that mean that 4 minutes of epoched data would suffice in order to perform ICA ?
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I.e., 64^2*30 = 122880 data points<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">If you sample at 512 Hz:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">512*240seconds=122880 data points<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Is this a correct way of reasoning for deciding to perform ICA decomposition on epoched data ?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thank you for your advice<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Bert<o:p></o:p></p>
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