[Eeglablist] missing data from imported bdf

[Ramón Martinez]

Dear Mary ,
 Would you mind to file a Bug report here <https://sccn.ucsd.edu/bugzilla/>
so we can follow up this. Please provide, version number of EEGLAB, BIOSIG
and MATLAB as well as a sample BDF file so we can reproduce the issue.
 Thanks,
Ramon

On Mon, Sep 19, 2016 at 4:22 PM, Mary MacLean <mary.maclean at psych.ucsb.edu>
wrote:

> Hi,
>
> Recently every few Biosemi bdf files that we import into eeglab (using
> BIOSIG toolbox) have lost data at some point in the file (e.g., around
> about 50 minutes into the recording). I mean completely gone, just zero in
> all the channels and no events. When I converted the same bdf files to edf
> files and imported those into eeglab using identical settings there was no
> lost data. The attached images show the same data at the same time point,
> imported from edf (intact) and bdf (data loss).
>
> Any ideas? This problem appeared after we switched to Windows 7 and
> started using a newer version of Actiview for acquisition.
>
> Here are some details:
>
> Actiview system:
> Windows 7 Professional
> Actiview 7.05
> 64 channel
> 1024 Hz
>
> eeglab system:
> OSX
> MATLAB 2013a
> eeglab v13.6.5b (same issue with older version of 13 as well)
> imported with mastoid references
>
> Biosemi provided bdf to edf converter using default settings (0.16 Hz high
> pass).
>
> Thanks,
> Mary
>
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-- 
_____________________________________________________
Ramon Martinez-Cancino
Swartz Center for Computational Neuroscience
Institute for Neural Computation, University of California San Diego
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