[Eeglablist] file not properly imported from bdf files with EEGlab multiple versions #506

[Alois Schlögl]

Dear Sasha,


as developer of Biosig, I recommend to check "bdf2biosig_events.m ", 
which is used to translate the BDF status channel into an event table as 
defined by Biosig [1]. By default "Mode=4" is used for the translation. 
It seems that your data requires a different decoding mode. Most likely 
some of the other decoding modes is more suitable for your data.


I hope this helps,
    Alois

[1] https://urldefense.com/v3/__https://pub.ist.ac.at/*schloegl/matlab/eeg/EventCodes.html__;fg!!Mih3wA!A_QT9cz74IdSVcOeozp1lUnEuVTSz19VQQPmsLQaENPay5xZiB1QVIwBHfLf8RxevVeTo0jardl5NVTaHSDvidJpvwCRwg$ 






Am 7/8/22 um 23:12 schrieb Makoto Miyakoshi via eeglablist:
> Dear Sasha,
>
> Sorry for the inconvenience. It is common to see a problem in importing
> data. It may be possible to intercept the process using the debug mode to
> diagnose/fix the problem, but it requires some skills and effort.
>
> If you don't have an access to the person who can look into this issue, you
> might want to post it to the eeglab github issue report.
> https://urldefense.com/v3/__https://github.com/sccn/eeglab/issues__;!!Mih3wA!Dm8gOybU1_5MYbrn7NlQe7Z6xDJ_Cec6ZP06K6_aThR77sXNIk2PPrV8ZSglMoC_nJZ0DfAuL6GjgzPiHRXCJ9jAccY$
>
> Note it may take some time for the developers to take a look at it. Sorry
> for the inconvenience.
>
> Makoto
>
> On Fri, Jul 1, 2022 at 2:02 PM Sasha Sherman <asherman at oxy.edu> wrote:
>
>> Hi all,
>>
>> I'm having an issue loading bdf files into EEGLAB. I've tried multiple
>> versions of matlab and multiple versions of eeglab,  including older and
>> newer versions as well as multiple computers but the issue persists with
>> several of my datasets. The error that I get is pasted below.  The
>> consequence of the error is that all of the event labels are incorrect--
>> with numbers like Th 65280, 65282, 65284, 65534 instead of the event labels
>> that I actually use. I have read about the issue on multiple forums and it
>> appears to be something about the default decoding setting of the biosig
>> toolbox but it strangely only occurs for some of my datasets (I haven't
>> been able to locate a consistent reason for why some files and not others
>> yet). Can anyone help me resolve this?
>>
>> Thanks,
>> Sasha
>> ---
>> Error:
>>
>> Warning SOPEN: number of event onset (TYP=7F00) and event offset (TYP=FF00)
>> differ (0,1)
>> Warning SOPEN: number of event onset (TYP=7F01) and event offset (TYP=FF01)
>> differ (0,118)
>> Warning SOPEN: number of event onset (TYP=7F02) and event offset (TYP=FF02)
>> differ (0,225)
>> Warning SOPEN: number of event onset (TYP=7F03) and event offset (TYP=FF03)
>> differ (0,260)
>> Warning SOPEN: number of event onset (TYP=7F04) and event offset (TYP=FF04)
>> differ (0,607)
>> Warning SOPEN: number of event onset (TYP=7F78) and event offset (TYP=FF78)
>> differ (0,59)
>> Warning SOPEN: number of event onset (TYP=7F82) and event offset (TYP=FF82)
>> differ (0,300)
>> Warning SOPEN: number of event onset (TYP=7F84) and event offset (TYP=FF84)
>> differ (0,300)
>> Warning SOPEN: number of event onset (TYP=7F8C) and event offset (TYP=FF8C)
>> differ (0,60)
>> Warning SOPEN: number of event onset (TYP=7F8D) and event offset (TYP=FF8D)
>> differ (0,60)
>> Warning SOPEN: number of event onset (TYP=7F8E) and event offset (TYP=FF8E)
>> differ (0,60)
>> Warning SOPEN: number of event onset (TYP=7F96) and event offset (TYP=FF96)
>> differ (0,60)
>> Warning SOPEN: number of event onset (TYP=7F97) and event offset (TYP=FF97)
>> differ (0,60)
>> Warning SOPEN: number of event onset (TYP=7FA0) and event offset (TYP=FFA0)
>> differ (0,60)
>> Warning SOPEN: number of event onset (TYP=7FAA) and event offset (TYP=FFAA)
>> differ (0,60)
>> Warning SOPEN: number of event onset (TYP=7FAC) and event offset (TYP=FFAC)
>> differ (0,60)
>> Warning SOPEN: number of event onset (TYP=7FF0) and event offset (TYP=FFF0)
>> differ (0,1)
>> Warning SOPEN: number of event onset (TYP=7FFA) and event offset (TYP=FFFA)
>> differ (0,599)
>> Warning SOPEN: number of event onset (TYP=7FFE) and event offset (TYP=FFFE)
>> differ (0,599)
>>
>> --
>>
>> *Aleksandra (Sasha) Sherman, PhD *(*she/her*) | Associate Professor,
>> Department Chair
>>
>> *Department of Cognitive Science*asherman at oxy.edu|  T 323-259-2786
>> Office Hours Appointment Link
>> <
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>>
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