[Eeglablist] Importing events from Netstation

[Tarik S Bel-Bahar]

Hi, please let the list know of your final solution, here are some quick
suggestions

1. Search deeper into the eeglab list archives regarding importing/reading
EGI/Netstation files/events.
Alternatively search on google for a combination of "eeglablist" and
"EGI/netstation/.RAW/events"
To date (netstation 4.4 and back) only the main event labels are imported
into eeglab
and not the rich TRSP information. it's just a matter of formats, etc..

2. The new Netstation (5.0?) has a new format which will purportedly allow
for easy recognition of the dense TRSP information that is available in
Netstation files.
See also EPToolkit (and eeglablist archives on EPtoolkit)

3. One alternative is to export your events from netstation as a separate
text file,
and then, via your own script, coordinate the events/TRSPs information from
this text file
with your eeglab file.
For example, if you 1000 events in your file, each with multiple TRSP
fields,
you would simply have to, with matlab, import your netstation events file,
and then find the 1st event in eeglab, the 1st event in your events file
(in matlab now),
and then add fields of choice to your eeglab file from the events file.

This solution is for continuous data from Netstation,
but this should also work with epoched data from NS imported into eeglab.




On Thu, Sep 20, 2012 at 6:14 PM, Stephen Hamilton <sthamilton at ucdavis.edu>wrote:

> Dear all,
>
> This is probably a very simple question with a straightforward answer, but
> I can't find it mentioned in previous posts. Apologies if I've missed it.
>
> I'm importing data recorded in Netstation (128 channel EGI system) into
> EEGlab so that I can reject artifacts using ICA. With Netstation, events
> are written into the .RAW files themselves, so I'm able to segment the data
> by condition very easily. However, I'm unable to distinguish correct trials
> from incorrect trials. When I try to import the event file given by
> Netstation, EEGlab doesn't like the fact that it's in string
> format. So, I've tried assigning events manually using the eventlist GUI
> provided by the ERPlab toolbox, but I'm unable to get it to read the
> accuracy information. This is, I think, because EGI/Netstation evaluates
> trial accuracy with TRSP events at the end of each trial and these
> evaluations are not tied to the condition labels themselves. If I open the
> Netstation event file the TRSP evaluation ("eval1" or "eval0") is provided
> at the end of the line for that event,  I just can't get EEGlab to read
> it. It's probably just a matter of tying these together in the Binlister
> somehow, but I can't find an example of how this is done.
>
> Again, sorry if this has been answered before. Any help would be much
> appreciated!
>
> S Hamilton
>
>
> --
> Dr. Stephen Hamilton
> Postdoctoral Researcher
> Language Processing Lab
> University of California, Davis
>
>
>
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