[Eeglablist] Rejecting/interpolating/reconstructing bad channels

[Makoto Miyakoshi]

Dear Chris,

What error message do you receive when you try the suggested operation? I
thought the one I suggested cannot fail. Thanks for your patience.

Makoto

On Tue, Aug 9, 2016 at 10:26 AM, Makoto Miyakoshi <mmiyakoshi at ucsd.edu>
wrote:

> Dear Chris,
>
> > 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?
>
> 'Use all channels from other dataset' and select the dataset before
> channel rejection. I always do that.
>
> Makoto
>
> On Mon, Aug 1, 2016 at 6:26 PM, Christopher Barkley <barkl025 at umn.edu>
> wrote:
>
>> Hi Makoto and fellow list-mates,
>> 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 *back *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.
>>
>> Chris Barkley
>> Experimental and Clinical Pharmacology
>> University of Minnesota
>>
>
>
>
> --
> Makoto Miyakoshi
> Swartz Center for Computational Neuroscience
> Institute for Neural Computation, University of California San Diego
>



-- 
Makoto Miyakoshi
Swartz Center for Computational Neuroscience
Institute for Neural Computation, University of California San Diego
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