[Eeglablist] Trouble with EGI multiple seg. files

[Tarik S Bel-Bahar]

Hello Mikaela, for now go ahead and try it this way first:  load each file
one at a time into eeglab memory, and then append the files into one file,
all using the gui. see if you get the same issues in the resultant file.

Have you ever seen this import step work normally ? If you havent, Try to
make sure that you can do all these steps  with the GUI first, and are
familiar with the tutorial and wiki. Too many people try to just hack
through using the command line and script without practicing first, without
working with test data, gui, etc..

You also are at least doing a lowpass before viewing, right ?

Last, The multifile egi file import in eeglab may have a bug. Also the file
names of the mltiple files need to be very specifically named in sequence.
Please also search review past eeglab list messages. If you can replicate
the issue, please document it and pass to eeglab bug list if necessary.


On Jan 28, 2016 1:37 AM, "Mikaela Joy Cowen" <mcowen at uwyo.edu> wrote:

> Hello,
>
> Our lab has been collecting simple resting state EEG data for a frontal
> asymmetry paradigm using an EGI system. We are running into problems when
> we are importing multiple seg. files into eeglab. At first glance, the
> scroll data looks fine, but when we look at the spectra data it isn't
> looking right (extremely low power values, and no "alpha bump" from 8-12
> hz). When we imported one segment without the others as a simple binary
> file, the data was looking more accurate. Any ideas what could be going on
> with this? At first we thought that the small power values might be a
> scaling problem, but we're not sure.
>
>
> Any help would be much appreciated!!
>
>
> Mikaela Cowen
>
>
> ___________________
>
> Mikaela Cowen, M.A.
>
> Department of Psychology
>
> Biological Sciences Room 103
>
> University of Wyoming
>
> 1000 E. University Ave.
>
> Laramie, WY 82071
>
>
>
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