[FieldTrip] Biosemi eventtype problem

[Schoffelen, J.M. (Jan Mathijs)]

Hi V.,

> With this new Biosemi dataset (programmed by someone else in E-prime, it's not my data):

Have you consulted with this ‘someone else’? From the looks of it, it doesn’t seem a FieldTrip issue per se.


Best,
JM




> cfg=[];
> cfg.dataset = dataset;
> cfg.trialdef.eventtype = 'STATUS';
> cfg.trialdef.eventvalue = '?';
> ft_definetrial returns markers that were not sent, and doesn't return markers that were sent. (The same occurs if I read the data in EEGlab by the way).
> It doesn't look like there's a linear transformation between what was sent and what FT finds. For example, markers sent were 1:21; FT returns [3:23 29:31], but I'll definitely look into the suggestion that maybe 1:21 was sent but for some reason recorded as 3:23 and the 29:31 are coming from somewhere else.
> 
> Thanks a lot!
> Vitoria
> 
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