[Eeglablist] dry electrodes

[Fibonacci Beksl]

Hello everyone,

We also have good experience using dry electrodes (acticap by
brainproducts). What we also found is that if you apply just a tiny bit of
conductive gel on the pin of the dry electrode you can speed up the setup
(desirable impedance) and also get a better SNR which can sometimes be a
problem with dry electrodes.

Cheers,
Blaž Hren

V V pon., 8. maj 2023 ob 13:11 je oseba Bluhm, Juergen via eeglablist <
eeglablist at sccn.ucsd.edu> napisala:

> Hi guys,
> We have very good experiences with dry electrodes, especially in market
> research studies, due to the easy setup and the same data quality even over
> longer periods of measurements. But we only need a few channels, so this
> may limit the use for others, but in our research field it is a big
> improvement over the wet electrodes we had to use before.
> Cheers,
> Juergen
> Much University of Applied Sciences
>
> https://urldefense.com/v3/__http://www.hm.edu__;!!Mih3wA!FYVt9rl8fZxw6VxGrfTjy2HJJQkygPjJtibAiejSPPxHOS5eq90jAlkEFhGRb1JsAXCUMERLht3fWQtv6SfblOBKYj503A$
>
>
>
> -----Original Message-----
> From: eeglablist <eeglablist-bounces at sccn.ucsd.edu> On Behalf Of Cedric
> Cannard via eeglablist
> Sent: Freitag, 5. Mai 2023 23:16
> To: Hanna Szakács <szakacsmiriamhanna at gmail.com>
> Cc: eeglab list <eeglablist at sccn.ucsd.edu>
> Subject: Re: [Eeglablist] dry electrodes
>
> Hi Ettore,
>
> Dry electrodes are very common these days, because they greatly facilitate
> data collection. However, there can be great SNR loss depending on the
> headsets. There are also various hardware differences that can impact the
> signal. There is tons of resources online on this topic, for example:
>
>
> https://urldefense.com/v3/__https://www.brainlatam.com/blog/wet-dry-active-and-passive-electrodes.-what-are-they-and-what-to-choose-413__;!!Mih3wA!By0ac_M9bHGakTDbSlc9T7RVo7UncvUnYn2NL1n_4nKeEP45MWwhtUaSsskAyoa06enO_FXMlDABRRNQ-ABg9u94Sw$
>
>
> https://urldefense.com/v3/__https://sapienlabs.org/lab-talk/wet-and-dry-electrodes-for-eeg/__;!!Mih3wA!By0ac_M9bHGakTDbSlc9T7RVo7UncvUnYn2NL1n_4nKeEP45MWwhtUaSsskAyoa06enO_FXMlDABRRNQ-ABlV4vPvQ$
>
>
> https://urldefense.com/v3/__https://www.nature.com/articles/s41598-020-62154-0__;!!Mih3wA!By0ac_M9bHGakTDbSlc9T7RVo7UncvUnYn2NL1n_4nKeEP45MWwhtUaSsskAyoa06enO_FXMlDABRRNQ-ABjvK04Kg$
>
>
> https://urldefense.com/v3/__https://wearablesensing.com/dry-electrode/__;!!Mih3wA!By0ac_M9bHGakTDbSlc9T7RVo7UncvUnYn2NL1n_4nKeEP45MWwhtUaSsskAyoa06enO_FXMlDABRRNQ-ACPBYocpw$
>
> See references on these pages too.
>
> Cedric
>
>
>
> ------- Original Message -------
> On Friday, May 5th, 2023 at 12:05 PM, Hanna Szakács via eeglablist <
> eeglablist at sccn.ucsd.edu> wrote:
>
>
> > Hi Ettore,
> >
> > Dry electrodes are frequently used in sleep studies, specifically the
> > Dreem headband. There are some pros, e.g. they are simpler to use,
> > even for non-researchers, and thus can be taken home by the
> > participants. It's much easier to recruit participants if they can
> > take the device home and sleep in their own beds while wearing it. I
> > would say it provides more valid data too, as sleeping at a new place
> > (such as a sleep lab) is difficult for some people and can give
> misleading data.
> > The con with this headband specifically is that it mostly collects
> > data from the frontal and occipital regions, which is very limited. We
> > can't see what goes on on the other parts of the scalp, so a lot of
> > potentially valuable data is lost. Also, the headband can move around
> > because the subject moves and turns in their sleep, so it might end up
> > much noisier than a regular EEG cap would.
> > Hanna
> >
> > Ettore Coppola via eeglablist eeglablist at sccn.ucsd.edu ezt írta
> (időpont:
> >
> > 2023. máj. 2., K, 23:55):
> >
> > > I don’t know if this question is off-topic!
> > > Have you some experiences with dry electrodes? What is your opinion?
> > > Thank you and ... sorry for my bad English!
> > > Ettore
> > >
> > > --
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