"Jörn M. Horschig"
jm.horschig at donders.ru.nl
Wed Jul 11 10:20:58 CEST 2012
Although I cannot help you directly and do not know about the specific
error you got, you can find all code changes on
For the biosig file you are referring to, please look here:
(but as you can see, nothing changed there)
Hope someone else can help out (Robert is on vacation right now, so
maybe someone else can help)
On 7/10/2012 8:49 PM, Steve Deiss wrote:
> The fieldtrip version we have calls function 'read_biosig_header'
> which calls 'sopen' with the following sequence.
> biosig = sopen(filename,'r');
> For some reason it loses the digital triggers on channel 1 in our data
> after issuing the following warning:
> "Reading data file header...
> WARNING SOPEN(EDF): Physical Max/Min values of EDF data are not
> necessarily defining the dynamic range.
> Hence, OVERFLOWDETECTION might not work correctly. See also
> EEG2HIST and read
> http://dx.doi.org/10.1016/S1388-2457(99)00172-8 (A. Schlgl et al.
> Quality Control ... Clin. Neurophysiol. 1999, Dec; 110(12): 2165 - 2170).
> A copy is available here, too:
> http://www.dpmi.tugraz.at/schloegl/publications/neurophys1999_2165.pdf "
> If we let EEGLAB read the data, its function 'pop_biosig' calls
> 'sopen' with
> biosig = sopen(filename,'r',0,'OVERFLOWDETECTION:OFF');
> The data read in here includes the triggers so that we can go on to
> epoch and process the data.
> We are not yet ready to upgrade to the very latest fieldtrip. So I
> would like to know if there is an easy way to
> determine if the latest version of fieldtrip changed anything in the
> way sopen is called from read_biosig_header?
> If it matches what EEGLAB does here, we can match that as a temporary
> I'll try to download and unpack it to see, but if this is a known
> problem, fixed or not, I'd appreciate any tips.
> fieldtrip mailing list
> fieldtrip at donders.ru.nl
Jörn M. Horschig
Donders Institute for Brain, Cognition and Behaviour
Centre for Cognitive Neuroimaging
Radboud University Nijmegen
Neuronal Oscillations Group
P.O. Box 9101
NL-6500 HB Nijmegen
E-Mail: jm.horschig at donders.ru.nl
Trigon, room 2.30
NL-6525 EN Nijmegen
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