[FieldTrip] ICA for merged EEG recordings

[Roni Tibon]

Thanks!

On 16 May 2012 12:08, Maarten De Vos <maarten.de.vos at uni-oldenburg.de>wrote:

>  dear Roni,
>
> I would definitely suggest to run ICA on separate blocks.  Because you
> removed the cap, also the relative position of eyes to the electrodes can
> have (has) been changed.  Seems you have enough data in both sessions to
> run a reliable ICA.
> so I would run ICA on separate blocks, remove artifacts, and then merge
> the data.
> best
> maarten
>  ------------------------------
> *Van:* fieldtrip-bounces at donders.ru.nl [fieldtrip-bounces at donders.ru.nl]
> namens Roni Tibon [ronitibon at gmail.com]
> *Verzonden:* woensdag 16 mei 2012 9:54
> *Aan:* Email discussion list for the FieldTrip project
> *Onderwerp:* [FieldTrip] ICA for merged EEG recordings
>
>   Hi all,
>
>  I have a question which is not directly related to fieldtrip, but I bet
> you can help me with that :)
>
>  I'm running a very long EEG experiment (takes about 3 hours), so we
> decided to run it in two sessions, in two following days.
> I used the Biosemi Merger to merge the files from day 1 and day 2, and
> want to run ICA to remove blinks and eye-movements.
>
>  Would you say it's better to run ICA on the merged file, or do you think
> it would be best to run ICA separately for each file, and then merge the
> data?
>
>  Thanks!
> Roni
>
>
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