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Dear EEGlab list,
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<div class="">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. </div>
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<div class="">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. </div>
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<div class="">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). </div>
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<div class="">Any hints would be gratefully accepted. </div>
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<div class="">Thanks</div>
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<div class="">Deborah.</div>
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Dr. Deborah Apthorp</div>
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<a href="mailto:deborah.apthorp@anu.edu.au" class="">deborah.apthorp@anu.edu.au</a></div>
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NHMRC Early Career Research Fellow</div>
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Research School of Psychology</div>
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Research School of Computer Science</div>
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ph. +61 412 441 123</div>
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<div class="">On 20 May 2017, at 4:49 am, Tarik S Bel-Bahar <<a href="mailto:tarikbelbahar@gmail.com" class="">tarikbelbahar@gmail.com</a>> wrote:</div>
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<div class="gmail_default" style="color:rgb(51,51,153)">Hello Maria, quick note below. Best wishes.</div>
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<div class="gmail_default" style="color:rgb(51,51,153)">**************************************************************************************</div>
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<div class="gmail_default" style="color:rgb(51,51,153)">Yes this should generally work in eeglab. Just properly create a study with your "only" 2 datasets.</div>
<div class="gmail_default" style="color:rgb(51,51,153)">Then compute/view plots of the differences between these two conditions.</div>
<div class="gmail_default" style="color:rgb(51,51,153)">Note there are also mutliple plugins (e.g. LIMO EEG) and an upcoming STUDY update that may be useful.</div>
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<div class="gmail_default" style="color:rgb(51,51,153)">Alternatively, you should be able to subtract one set of data from the other,</div>
<div class="gmail_default" style="color:rgb(51,51,153)">and then feed the differenced data to the eeglab function of your choice.</div>
<div class="gmail_default" style="color:rgb(51,51,153)">This would be in a script, where you have two EEG.data structures.</div>
<div class="gmail_default" style="color:rgb(51,51,153)">Then you should end up with one new EEG.data structure that is the difference.</div>
<div class="gmail_default" style="color:rgb(51,51,153)">You have to determine how the difference is computed, channel-wise, time-wise, ERPs or continuous, etc...</div>
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<div class="gmail_default" style="color:rgb(51,51,153)">You can also find previous answers on similar topics by googling eeglablist and your topic (e.g., difference, difference waves, difference topomap, etc..).</div>
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