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 Post subject: Odd-looking EEG data
PostPosted: Wed Aug 12, 2015 1:14 pm 
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Joined: Tue Mar 24, 2015 9:08 am
Posts: 5
Not sure if this is the right place for this question, but I'll try..

We have recorded data using BrainVision v-amp, but when plotted the data do not resemble brain data, or even what we might expect from normal EEG "noise" data. Hoping someone has seen something like this before, and can help us figure out what is going on. I have posted two screenshots here:

https://ethan-weed.squarespace.com/scratch

Thanks!

/Ethan


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 Post subject: Re: Odd-looking EEG data
PostPosted: Tue Aug 25, 2015 4:35 pm 
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Joined: Tue Apr 01, 2014 8:22 am
Posts: 71
Hi,

The values are effectively improbable. Do you find the problem?

Guillaume


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 Post subject: Re: Odd-looking EEG data
PostPosted: Fri Sep 04, 2015 7:57 am 
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Joined: Tue Dec 04, 2012 3:53 pm
Posts: 696
Location: INRIA Rennes, FRANCE
To me the data looks strongly rectified (i.e. capped at some min, max, and sometimes 0). Did you record it with OpenViBE acquisition server or some other tool?


Cheers,
Jussi


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