Hi,
Ok, I do get the difference and that it is only important if I want to average multiple subjects. For that reason I calculated the single trial average (of the sources), because I wanted to have a group average (as you mentioned).
But in the single subject case, the two froms of average don’t make a difference don’t they? I mean in my special case of data I sent you I don’t see any difference. I am just a bit confused because I understood that you found a difference but I don’t see it ( I am specifically talking about the data I sent you).
Thanks
Maren