[Eeglablist] Electrolyte gel question

Makoto Miyakoshi mmiyakoshi at ucsd.edu
Wed Dec 2 10:25:33 PST 2015

Dear Pamela,

Would you mind letting me know source of info that bubbles in the gel
affect recording quality? I want to learn it more.


On Tue, Dec 1, 2015 at 2:29 PM, Pamela Leigh Stevenson <
pamela.stevenson at unb.ca> wrote:

> Hello everyone!
> I would like to get your advice on an issue related to electrolyte gel:
> We ordered some electrolyte gel this summer and noticed that it arrived
> full of bubbles. We contacted the company to let them know and they send us
> some replacement gel. Unfortunately, the replacement gel has just as many
> bubbles as the original batch. We sought advice on how to decrease the
> amount of bubbles from the company who makes the gel, but nothing they
> suggested has helped. This has made data collection much more difficult (in
> terms of reducing electrode impedance).
> Have any of you experienced this? If so, have you been able to reduce the
> amount of bubbles in the gel? Can anyone suggest a brand of gel that you
> have had a good experience with?
> Thank you for your advice/suggestions!
> Pam
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Makoto Miyakoshi
Swartz Center for Computational Neuroscience
Institute for Neural Computation, University of California San Diego
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