[FieldTrip] Importing B-Alert X10 data

[Azeez Adebimpe]

if it is compatible with EEGLAB, you can use *eeglab2fieldtrip *to convert
the data to fieldtrip format if you are interested in doing analysis with
fieldtrip.

*Az*

On Thu, Jun 9, 2016 at 11:03 AM, Robin Kramer <kramerrobin92 at gmail.com>
wrote:

> ​
>  000222000.010616.103900.Events.edf
> <https://drive.google.com/file/d/0B4UCcTb4Xh26ZU85WUF4aHJFdms/view?usp=drive_web>
> ​​
>  000222000.010616.103900.Signals.Raw.edf
> <https://drive.google.com/file/d/0B4UCcTb4Xh26N3BPQWFKRTIwSGM/view?usp=drive_web>
> ​Hello,
>
> Recently we started a research with a new wearable EEG system called the
> B-Alert X-10 from Advanced Brain Monitoring. ABM does deliver their own
> analyzing software and it is compatible with EEGLab but not with Fieldtrip.
> Has anyone attempted to analyze the B-Alert data via FieldTrip already?
>
> The way data is stored is rather odd actually. The data is epoched in
> every second, with 256 samples (Fs = 256) in each epoch for each channel.
> In other words, there are as much separate trials as there are seconds.
> After preprocessing, and some manual labour I could rearrange the epochs
> and make the data continuous, but then I encountered two challenges.
>
> First, the event markers are stored in a different EDF file. Therefore, I
> have to define my own trial function, but the event-marker data is also
> stored rather oddly.
> Second, it seems that fieldtrip cannot segment any data after
> preprocessing with ft_definetrials(). Sadly, before preprocessing the
> B-Alert data is in the strange format. Is there a workaround? I have send a
> link with the two EDF files, in case one would like to inspect them
> themselves.
>
> Thank you so much.
>
> Best regards,
>
> Robin Kramer
> Student MSc Human-Machine Communication
> University of Groningen, the Netherlands
>
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