[Eeglablist] shifting event markers in time
arno
arno at salk.edu
Wed Sep 27 04:09:44 PDT 2006
Dear Doerte,
yes, just type
for index = 1:length(EEG.event)
EEG.event(index).latency = EEG.event(index).latency-0.05*srate;
end;
EEG = eeg_checkset(EEG, 'eventconsistency'); % check for out of bound events
[ALLEEG EEG] = eeg_store(ALLEEG, EEG, CURRENTSET); % store dataset in ALLEEG
eeglab redraw; % redraw GUI
Best,
Arno
Dörte Spring wrote:
> Hi folks,
>
> I was wondering whether there is a possibility in eeglab to shift all
> event markers by 50 ms backwards in time? I'm concerned that the ERPs
> won't be right if I just create ERPs as usual and shift the revealed
> components by 50 ms in my head for better interpretation. Namely, the
> actual stimuli occurred 50 ms later then the event marker was sent out.
> I really think that the baseline and its removal would yield much better
> data/ERPs if I could include these 50 ms into the baseline as well and
> let the ERP start 50 ms later.
>
> I'm open for any suggestions.
>
> Many thanks,
>
> Doerte
>
>
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