[Eeglablist] BESA .fsg files

[Tarik S Bel-Bahar]

Hello Deborah, a few notes below, best wishes.

*********************************************************
just a small suggestion though it does not resolve your besa import issue
fully. if you can you get the main eeg data into matlab and/or eeglab,
that's good. If you can get the "times" for the "events" for the 5
conditions in a text or excel file, then you should be able to import that
into matlab and/or eeglab and do the plotting you're interested, by
condition. For basic steps, you can google/review eeglablist and eeglab
tutorials on event formatting and importing. Further, have you contact BESA
themselves and/or researchers who have published data with besa + matlab
computations. These would likely be able to help you most.























On Tue, May 23, 2017 at 10:17 PM, Deborah Apthorp <
deborah.apthorp at anu.edu.au> wrote:

> Dear EEGlab list,
>
> I’m trying to work with some files from BESA software that a colleague
> needs plotted in a specific way. What I really want it just to get the
> numbers into MATLAB so I can write a nice script to plot them. However,
> these files are .fsg files, and I CANNOT find any easy way to import them.
>
> I have managed (at some length) to get hold of a BESA license and have
> tried to export the files in as many ways as possible. Not one of these
> seems easily importable into either EEGlab or MATLAB. The closest has been
> the elf format, but this does not import well - it imports the data but not
> the 5 conditions.
>
> The files have 33 channels with the averages for 5 different conditions.
> In the dataset these seem to be appended (so the data format is 33x10752
> which I presume is all 5 events end-to-end).
>
> Any hints would be gratefully accepted.
>
> Thanks
>
> Deborah.
>
>
>
>
> Dr. Deborah Apthorp
> deborah.apthorp at anu.edu.au
> NHMRC Early Career Research Fellow
> Research School of Psychology
> Research School of Computer Science
>
> ph. +61 412 441 123 <+61%20412%20441%20123>
>
>
>
>
> On 20 May 2017, at 4:49 am, Tarik S Bel-Bahar <tarikbelbahar at gmail.com>
> wrote:
>
> Hello Maria, quick note below. Best wishes.
>
> ************************************************************
> **************************
>
> Yes this should generally work in eeglab. Just properly create a study
> with your "only" 2 datasets.
> Then compute/view plots of the differences between these two conditions.
> Note there are also mutliple plugins (e.g. LIMO EEG) and an upcoming STUDY
> update that may be useful.
>
> Alternatively, you should be able to subtract one set of data from the
> other,
> and then feed the differenced data to the eeglab function of your choice.
> This would be in a script, where you have two EEG.data structures.
> Then you should end up with one new EEG.data structure that is the
> difference.
> You have to determine how the difference is computed, channel-wise,
> time-wise, ERPs or continuous, etc...
>
> You can also find previous answers on similar topics by googling
> eeglablist and your topic (e.g., difference, difference waves, difference
> topomap, etc..).
>
>
>
>
>
>
> _______________________________________________
> Eeglablist page: http://sccn.ucsd.edu/eeglab/eeglabmail.html
> To unsubscribe, send an empty email to eeglablist-unsubscribe at sccn.
> ucsd.edu
> For digest mode, send an email with the subject "set digest mime" to
> eeglablist-request at sccn.ucsd.edu
>
>
>
> _______________________________________________
> Eeglablist page: http://sccn.ucsd.edu/eeglab/eeglabmail.html
> To unsubscribe, send an empty email to eeglablist-unsubscribe at sccn.
> ucsd.edu
> For digest mode, send an email with the subject "set digest mime" to
> eeglablist-request at sccn.ucsd.edu
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://sccn.ucsd.edu/pipermail/eeglablist/attachments/20170528/6527a670/attachment.html>