<div dir="ltr">Dear Chris,<div><br></div><div>> is there perhaps a way to use 'pop_interp' and a EEG.chanlocs file from an initial pre-channel-deletion file in order to get at the subject-specific channel-deletions?<br></div><div><br></div><div>'Use all channels from other dataset' and select the dataset before channel rejection. I always do that.</div><div class="gmail_extra"><br></div><div class="gmail_extra">Makoto</div><div class="gmail_extra"><br><div class="gmail_quote">On Mon, Aug 1, 2016 at 6:26 PM, Christopher Barkley <span dir="ltr"><<a href="mailto:barkl025@umn.edu" target="_blank">barkl025@umn.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex"><div dir="ltr">Hi Makoto and fellow list-mates,<div>Pardon any ignorance on my end but I have been dealing with a particularly 'messy' data set (EEG was collected while subjects were heavily medicated) so have been tinkering with the best way to pre-process to get the data as clean as possible before creating STUDY. So... I basically used Makoto's pre-processing pipe-line as a guide, down-sampling and filtering first, then using 'trim-outlier' to remove (particularly) bad channels, keeping track of which channels I was removing for each subject. The next steps are where I may have gone astray: I first rejected non-sterotyped artifacts manually, fed the resulting (epoched) data into ICA, rejecting components using the ADJUST toolbox, fed the data <i>back </i>into ICA, and then manually rejected the resulting pruned data. The goal was to clean the data to this extent so that when I replaced/interpolated the removed channels the data would be as clean as possible before calculating average reference, the output of which would then also be as clean as possible. However when I try to interpolate in the GUI, the list of 'removed channels' does not include the ones that I removed, and choosing 'select from data channels' in the GUI menu leads me to a list that excludes the already removed channels.... Have I gone completely awry, or is there perhaps a way to use 'pop_interp' and a EEG.chanlocs file from an initial pre-channel-deletion file in order to get at the subject-specific channel-deletions? I know the number of channels will need to be consistent for STUDY creation..... Anyways, many apologies for the ramble, any advice will be much appreciated, all the best.</div><div><br></div><div>Chris Barkley</div><div>Experimental and Clinical Pharmacology</div><div>University of Minnesota</div></div>
</blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr">Makoto Miyakoshi<br>Swartz Center for Computational Neuroscience<br>Institute for Neural Computation, University of California San Diego<br></div></div>
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