What are the electrodes for?

What are the electrodes for?

Electrodes pick up the tiny electrical signals produced by your brain simply by touching the skin on your scalp; they don't penetrate the skin or deliver any current. These signals can be recorded through hair, which is why the electrodes on the top of the headset are shaped like a comb, so they can part the hair and make good contact with the scalp, while the ones at the bottom are smooth because they sit behind the ear where there is little or no hair. The electrodes have a specially designed, silvery-grey coating that gradually wears down with use, so depending on how much hair you have and how often you train, you will usually need to replace them every few months.

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    • Can I get an electric shock from an electrode?

      No! The electrodes are designed to passively record your brain activity and there is no risk of an electric shock.

    • Will hair products interfere with my electrode connection?

      It is possible that some hair products could reduce the quality of the contact between the electrodes and the scalp so if possible, try to train before you use any products in your hair, or train straight after you have washed your hair. This will ...

    • The top electrodes are causing discomfort.

      It’s easy to press the top electrodes too firmly, which can cause discomfort over time. Generally, the top Flex electrodes do not require much pressure, as long as they are making contact with your scalp. To help reduce pressure and improve comfort, ...

    • Does the headset double as a set of headphones?

      The Alevia headset may look like a pair of headphones, but it does not function as one. It has open vents in the earcups so that everyday sounds can pass through normally and your hearing is not blocked. The Alevia headset is a medical device ...

    • What battery does Alevia use?

      The Alevia headset uses a single AAA battery. Any kind of AAA battery should work so long as it meets the typical AAA voltage rating of 1.5V (use time will vary depending on the quality). We suggest you use a long lasting battery and not rechargeable ...