ICA-gurus<br><br>
<p class="MsoNormal">I have a low density montage, 8 channels over the
frontal and prefrontal regions. I want to know if it is feasible to use ICA in
this context for artifact correction, or is ICAs application limited to higher
density montages?</p><p class="MsoNormal"><br> </p>
<p class="MsoNormal">RUNICA appears to resolve all the eye-blink data into one
neat component on a trial run: One can see this in spatial (scalp maps),
frequency (fractal dimension) and time domain. My concern is that with only 8
components to resolve to, and limited spatial sampling (frontal region only),
important the cortical data may also be resolved to the artifactual component.</p><p class="MsoNormal"><br></p>
<p class="MsoNormal">Can someone please share any experience they have in this
context, or provide some theoretical guidance in terms of ICA performance under
such conditions?</p>
<br>Yaseen<br><br>