First steps with FIELDTRIP

[Nicola Neumann]

Dear all,

  Just starting to work with FIELDTRIP, I have the typical problems of
a beginner and wondered whether you could help me with these. I
conducted an MEG study (CTF, Vancouver whole-head system) in an
old-new recognition paradigm.

1. From the tutorial it was not clear to me what the very first step
is to analyze the data, and I tried the 'read_data' command (dat =
read_data ('filename.ds');). However, there is an error message
Error in ==>
/Applications/fieldtrip/fieldtrip-20090128/external/ctf/getCTFdata.p>getCTFdata at
28
Error in ==> read_data at 654
      dat = getCTFdata(hdr.orig, [begtrial:endtrial], chanindx, 'T', 'double');

both for my own and your tutorial data. Do you have any idea, why the
command does not work?

2. Could you maybe provide me with a skript 'from the very beginning"
to avoid this kind of problems? I do not know either how the header
information can be integrated (presumably with "read_header"), and how
to go on to the next step of preprocessing.

Thank you very much for your help.
Nicola

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The aim of this list is to facilitate the discussion between users of the FieldTrip  toolbox, to share experiences and to discuss new ideas for MEG and EEG analysis. See also http://listserv.surfnet.nl/archives/fieldtrip.html and http://www.ru.nl/fcdonders/fieldtrip.