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Hello,<BR> <BR>In case you have not seen this, I hope that this is helpful:<BR><a href="http://erpinfo.org/erplab/erplab-documentation/manual/Bin_Operations.html">http://erpinfo.org/erplab/erplab-documentation/manual/Bin_Operations.html</a><BR> <BR>In which case, I'd suggest the place to start is to install the ERPLAB plugin:<BR><a href="http://erpinfo.org/erplab/erplab-documentation/manual/Installation_Info.html">http://erpinfo.org/erplab/erplab-documentation/manual/Installation_Info.html</a><BR>and go through the tutorial:<BR><a href="http://erpinfo.org/erplab/erplab-documentation/manual/index.html">http://erpinfo.org/erplab/erplab-documentation/manual/index.html</a><BR> <BR>Before adopting the received wisdom of the literature as to the electrode pair(s) of choice for significant testing, I'd be inclined to find any lateralised components of interest and then map them to get a feel for the distribution of the component first.<BR> <BR>Best regards,<BR>Tom.<br> <BR><BR><div><div id="SkyDrivePlaceholder"></div><hr id="stopSpelling">Date: Sun, 29 Jan 2012 21:55:22 +0100<br>From: d.gledhill@uni-bremen.de<br>To: eeglablist@sccn.ucsd.edu<br>Subject: [Eeglablist] Creating ERPs contralateral and ipsilateral to stimulus presentation<br><br>
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<font face="Calibri">Dear all,<br>
<br>
I am doing my PhD in Visual Neuroscience and quite recently
started my EEG analysis with EEGLAB.<br>
In my experiment two stimuli are presented bilaterally with one of
them changing it's color. I am trying to create ERPs contra- and
ipsilateral to the color change, but not sure how to proceed in
EEGLAB.<br>
<br>
There is only one message in the discussion list with the idea of
"Swap the data, not the channels. Leave the channels alone." <br>
But how does it work? <br>
- contralateral: data of left-hemispheric electrodes for changes
on the right side and data of right-hemispheric electrodes for
changes on the left side<br>
- ipsilateral: data of left-hemispheric electrodes for changes on
the left side and data of right hemispheric electrodes for changes
on the right side<br>
<br>
It would be wonderful to get some help with that!<br>
<br>
Kind regards from Bremen,<br>
Dani<br>
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