[Eeglablist] Average of ERP (Scalp map) where each participant has different # of epochs

Makoto Miyakoshi mmiyakoshi at ucsd.edu
Wed Jul 16 16:51:29 PDT 2014

Dear Ahmed,

They can have different number of channels for STUDY but not different
number of datasets. It should be consistent across subjects.


On Tue, Jul 15, 2014 at 8:11 AM, Ahmed Al-Samarrai <
samarrai.a at googlemail.com> wrote:

> Hi!
> I am trying to plot the ERD on the 2D scalp.
> I understand I can find the average 2D topographical power scalp map for a
> group of people in a STUDY - however in my current STUDY some participants
> have 5 data sets while others have 6 (due to artifact removal) and so it
> says it can not do it.
> Is there a way around this please?
> Typically I am aiming for a plot as seen in this publication (figure 1
> P.2224) please:
> http://onlinelibrary.wiley.com/doi/10.1002/hbm.22322/pdf
> Sorry but it is somewhat urgent - if possible.
> Thanks for your time
> Ahmed
> Wales.
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Makoto Miyakoshi
Swartz Center for Computational Neuroscience
Institute for Neural Computation, University of California San Diego
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