[Eeglablist] BioSemi and electric shocks

G.J.M. van Boxtel G.J.M.vBoxtel at uvt.nl
Tue Jun 4 00:11:43 PDT 2019


Why not contact Biosemi directly?
They are usually very interested in new developments and applications.

Geert

-----Original Message-----
From: eeglablist [mailto:eeglablist-bounces at sccn.ucsd.edu] On Behalf Of Phillip Alday
Sent: maandag 3 juni 2019 9:47
To: Roni Shafir <ronishafir1 at gmail.com>; eeglablist <eeglablist at sccn.ucsd.edu>
Subject: Re: [Eeglablist] BioSemi and electric shocks

Have you made sure that your full setup is properly grounded?

Are you following full isolation guidelines, as mentioned on the linked
page?

Have you considered building a small Faraday cage around the Stimulator
or its power supply? There are many guides for doing this with e.g. old
CRT monitors.

Phillip

On 02/06/2019 10:57, Roni Shafir wrote:
> Hi all,
>
> We're now conducting a new experiment where we deliver electric shocks
> while measuring EEG using the BioSemi.
>
> This is the Stimulator we're using for delivering the shocks:
> https://www.biopac.com/product/current-or-voltage-linear-isolated-stimulator/
>
> We are seeing a very robust noise once the Stimulator's electrodes are
> connected to the subject's arm, or even just placed on the table. This
> happens regardless of whether the Stimulator is currently delivering a
> shock or not.
>
> Anyone has experience with combining these two devices? Any suggestions
> would be highly appreciated.
>
> Thanks!
> Roni
>
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