[Eeglablist] interpolation of bad channels after ICA

John Fredy Ochoa Gómez . jfochoaster at gmail.com
Sat Aug 29 02:03:49 PDT 2015


I also recommend the PREP pipeline that have robust detection and
interpolation algorithms for the bad channels

On Sat, Aug 22, 2015 at 1:39 AM, Makoto Miyakoshi <mmiyakoshi at ucsd.edu>
wrote:

> Dear Marco,
>
> Remove the channel, run ICA, interpolate the removed channel if necessary.
> Do not run ICA with the bad channel.
>
> > I don't know how to do step 3.
>
> EEGLAB has a channel interpolation function which user can do it from GUI.
>
> Makoto
>
> On Thu, Aug 20, 2015 at 9:33 AM, Marco Buiatti <marco.buiatti at gmail.com>
> wrote:
>
>> Dear EEGLAB Masters,
>>
>> I have a question concerning the interpolation of bad channels after ICA.
>>
>> When I identify a bad channel, I would like to:
>> 1) run ICA ignoring that channel,
>> 2) remove ICs representing artifacts,
>> 3) and then reinterpolate the channel.
>>
>> What's the cleanest way to do that? I know that I can deselect that
>> channel when I run ICA (by the way, what is plotted at that channel
>> position when I plot the topography of the ICA components?), but I don't
>> know how to do step 3.
>>
>> Ideally, I would like the interpolated channel to be in the same order
>> where it was before, so that channel configuration is the same across
>> subjects.
>>
>> I see a button 'Select from removed channels' in Tools > Interpolate
>> Electrodes which sounds like solving this issue, but I have not been able
>> to activate it.
>>
>> Thanks for your help,
>>
>> Marco
>>
>>
>> --
>> Marco Buiatti
>>
>> Neonatal Neurocognition Lab
>> Center for Mind/Brain Sciences
>> University of Trento,
>> Corso Bettini 31, 38068 Rovereto (TN), Italy
>> E-mail: marco.buiatti at unitn.it
>> Phone: +39 0464-808178
>>
>> ***********************************************
>>
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>
>
>
> --
> Makoto Miyakoshi
> Swartz Center for Computational Neuroscience
> Institute for Neural Computation, University of California San Diego
>
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-- 
John Ochoa
Docente de Bioingeniería
Universidad de Antioquia
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