[Eeglablist] averaging using EEGlab
politzerahless at gmail.com
Mon Feb 3 17:57:14 PST 2014
To do statistics on averaged ERPs, I believe the STUDY structure has a lot
of options; I personally haven't used it but there is documentation on the
EEGLAB wiki. You can also plot averages of one or more datasets in the GUI
using Plot > Sum/Compare ERPs.
It's also straightforward to make averages in MATLAB. The EEG.data
structure for epoched data is a three-dimensional matrix (channels *
samples * trials), so you can create an average for a given dataset with:
avg = mean( EEG.data, 3 );
then just do that for every condition for every participant, and you've got
averages that you can plot, analyze, etc.
Hope that helps,
New York University, Abu Dhabi
Neuroscience of Language Lab
On Mon, Feb 3, 2014 at 5:19 PM, Akshay Maggu <akshaymaggu86 at gmail.com>wrote:
> Hi all,
> Is there any way to go beyond epoching to get averaged waveform using
> EEGlab? I do all the pre-processing and get stuck here. Please help.
> Akshay Raj Maggu,
> Ph. D student,
> Division of Linguistics and Modern Languages,
> Chinese University of Hong Kong,
> Hong Kong.
> webpage: http://www.cuhk.edu.hk/lin/new/people/students/maggu/
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