[Eeglablist] Residual drift following High-pass 0.1

Elisa Infanti elisa.infanti at unitn.it
Thu Sep 17 01:19:02 PDT 2015


Hi Joshua,

I am not the most expert in the field, but those slow oscillations look
familiar to me.
I believe it is because of the wires: they are stretched by something.
Probably the participant turned his head a bit and the wires were stuck by
something and not free to move (maybe they just fell behind participant's
back or they are simply not free to smoothly follow the movement and they
get stretched). Make sure that they are completly free and you won't see
those oscillations again.

Hope this helps!
ciao
Elisa

2015-09-15 16:54 GMT+02:00 Baker, Joshua <joshua.baker at ntu.ac.uk>:

> Dear EEGers
>
>
> Following high-pass filtering (0.1 Hz) of my EEG data there still appears
> to be some residual drift. Please see below screenshot. Any ideas as to
> what could be the cause of this? I have played around with different high
> pass parameters however the drift still persists!
>
>
>
>
> Thanks,
>
>
> Joshua Baker
>
> NTU Psychology
>
>
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-- 

*Elisa Infanti, PhD Student*


*Center for Mind/Brain SciencesUniversity of TrentoCorso Bettini 31, 38068
Rovereto (TN), Italy*
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