Amplification for Action Potentials

[arrektor]

Hello,

I have constructed a Faraday box containing electrodes that are going to detect the action potentials or/and local field potentials from inside the brain.

I was wondering whether someone constructed something like this before and what strategies were used to reduce the noise reaching the electrodes.

Specifically, at random instances noise appears that is not obvious how it was induced.

I am using 2 Aris Amplifiers (neurostar) and I am wondering if there is noise induced when the wires of the two Amplifiers are close to each other?

Any ideas will be really helpful.

Thank you.

 

[marcusl]

Diagnosing your problem will require a great deal more information about your apparatus, experiment, lead placement, signal levels, nature of the noise, etc., than you have provided. However, recording EEG's and even action potentials is a mature technique whose principles are well understood. I suggest that you contact your vendor Neurostar for assistance. They should have application notes to describe proper technique, and applications engineers to help you with your issues. You are welcome to come back here as well, of course, although a forum is an awkward way to interact over complex matters.

 

[arrektor]

Thank you very much.

In fact, I tried to contact the company but I did not have any response for some time, so I supposed that I could give a go to this forum.