[Eeglablist] Creating ERPs contralateral and ipsilateral to stimulus presentation

[Tom Campbell]

Hello, In case you have not seen this, I hope that this is helpful:http://erpinfo.org/erplab/erplab-documentation/manual/Bin_Operations.html In which case, I'd suggest the place to start is to install the ERPLAB plugin:http://erpinfo.org/erplab/erplab-documentation/manual/Installation_Info.htmland go through the tutorial:http://erpinfo.org/erplab/erplab-documentation/manual/index.html 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. Best regards,Tom.
 Date: Sun, 29 Jan 2012 21:55:22 +0100
From: d.gledhill at uni-bremen.de
To: eeglablist at sccn.ucsd.edu
Subject: [Eeglablist] Creating ERPs contralateral and ipsilateral to stimulus presentation



  



    
  
  
    Dear all,

      

      I am doing my PhD in Visual Neuroscience and quite recently
      started my EEG analysis with EEGLAB.

      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.

      

      There is only one message in the discussion list with the idea of
      "Swap the data, not the channels. Leave the channels alone." 

      But how does it work? 

      - contralateral:  data of left-hemispheric electrodes for changes
      on the right side and data of right-hemispheric electrodes for
      changes on the left side

      - ipsilateral:  data of left-hemispheric electrodes for changes on
      the left side and data of right hemispheric electrodes for changes
      on the right side

      

      It would be wonderful to get some help with that!

      

      Kind regards from Bremen,

      Dani

    
  


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