[Eeglablist] Subtracting conditions and statistics

[Andrew Hill]

Hello Veronique,

I believe you can do a lot of that manually by manipulating the data in the EEG variable object from the Matlab command line, but I do much of it ERPLAB, a free EEGLAB plugin.  

you can probably do a lot of what you want using the EEGLAB menus too, but ERPLAB has nice measurement tools for outputting tables of component measurements you can import into R/excel/SPSS, as well as sophsticated event and channel manipulation operations to create/add/subject/etc., new channels:  http://erpinfo.org/

In addition to ERPLAB, you can also create difference waves and do multiple t-tests along the waveforms using David Groppe's Mass Univariate ERP Toolbox: http://openwetware.org/wiki/Mass_Univariate_ERP_Toolbox

Both toolsets are very well documented and fairly easy to work with - e.g. at about the same level as EEGLAB.

Best,
Andrew


On Mar 25, 2011, at 10:16 AM, Veronique Boulenger wrote:

>  Dear EEGLab users,
> 
> I am new to EEGlab so I apologize in advance if answers to my questions 
> are obvious. I ran an MMN experiment and would like to subtract 2 
> conditions to compute a difference waveform (i.e. the MMN). I managed to 
> plot the MMN using Sum/Compare ERPs from the Plot menu but I don't know 
> how to save it as a "new condition" (to do some stats afterwards). Can 
> anyone help?
> 
> Also, I would like to do an ANOVA to compare MMN latency and amplitude 
> between 2 types of contrasts and 2 groups of subjects (2x2 design). For 
> this, I'd like to extract numerical values for peak latency and peak 
> amplitude in a given time-window. Does anyone know how to do it with EEGlab?
> 
> Many thanks in advance for your help!
> 
> Cheers,
> Veronique Boulenger
> 
> -- 
> Véronique Boulenger, PhD
> Chargée de Recherches CNRS
> Laboratoire Dynamique du Langage – UMR 5596
> Institut des Sciences de l’Homme
> 14 avenue Berthelot
> F69363 Lyon Cedex 07
> 
> (33) 04.72.72.79.24
> (33) 04.72.72.65.90
> veronique.boulenger at ish-lyon.cnrs.fr
> http://www.ddl.ish-lyon.cnrs.fr/Annuaires/Boulenger
> 
> 
> _______________________________________________
> 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/20110328/7b99a680/attachment.html>