[FieldTrip] Reading in .bdf files
r.braukmann at donders.ru.nl
Mon Sep 22 16:43:19 CEST 2014
I have a question regarding reading in Biosemi .bdf files.
I followed the example on the ft website to read in a .bdf file, and -
although it does not give an error- , the data looks very odd. In the
ft_databrowser for example the vertical scale is [ -178000 178000 ] which
seems very werid to me.
I tried re-referencing the data, like in the example, using channel
'EXG5', but this did not help.
Is there anyone who has experience with reading in biosemi files who could
give me some advice?
It would also be great if someone could explain to me what these EXG
channels are exactly.
I have for now turned to converting the .bdf file to .edf file (using the
converter from www.biosemi.com/download/
Then the data looks normal, but it created some other issues with my
markers and I would rather not use the converted files.
More than anything, I am very curious what is going on with the original
file, so any help is much appreciated!
Thanks in advance!
Ricarda Braukmann, MSc
Radboud University Medical Centre & Baby Research Center
Donders Institute for Brain, Cognition and Behaviour,
Centre for Neuroscience & Centre for Cognition
Phone: +31 (0) 24 36 12652
Email: r.braukmann at donders.ru.nl
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