[FieldTrip] BVA preprocessed data importing
tuba aktürk
aktrktuba at gmail.com
Tue Feb 22 07:09:08 CET 2022
Dear all,
I have a question about brain vision preprocessed EEG data importing to the
Filedtrip;
Normally, I was using the below code for it, which worked perfectly so many
times. But, with the newest versions of the Fieldtrip I am getting the
warning: "Warning: endsample is before begsample, returning empty data",
and it ends up with the trial structure where only the last trial is read
and the previous ones appear blank... I searched blogs and Fieldtrip
mailing list, however, didn't find any topic on that problem. I am sharing
the script I am using below. If you have any suggestions or ideas I would
be very grateful. Thanks!
path = 'C:\Vision\Analyzer2\export\';
% Subject Lists
subjs = {'t01' 't02' 't03' 't04' 't05'};
% Condition Lists
cond = {'Segmentation_-1500_1500_aud_post'
'Segmentation_-1500_1500_aud_pre'};
for i=1:length(subjs)
for k=1:length(cond)
cfg = [];
cfg.trialfun = 'ft_trialfun_brainvision_segmented';
cfg.continuous = 'no';
cfg.demean = 'yes';
cfg.baselinewindow = [-200 0];
cfg.dataset = [path subjs{i} cond{k} '.eeg'];
cfg.headerfile = [path subjs{i} cond{k} '.vhdr'];
cfg = ft_definetrial(cfg);
if k == 1
subj(i).aud_post = ft_preprocessing (cfg);
elseif k == 2
subj(i).aud_pre = ft_preprocessing (cfg);
end
end
end
Best regards,
Tuba
--
*Tuba Aktürk*
*PhD StudentCognitive Neuroscience, Psychology and Neuroscience, Maastricht
University **&*
*Neuroscience, Graduate School of Health Science, Istanbul Medipol
University*
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