Hi everyone,
Just discovered this forum a few days ago and I've learnt a lot while browsing it. Thank you to all who've asked questions and taken the time to answer them! Recently, I was recording EEG and noticed this strange drifting in the EEG signal. I've seen this before but I have no idea what it means. For extra info, the participant was wearing closed-ear headphones and their head was on a chinrest.
Kind regards,
Nathan
Strange Signal Drift
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Nathan5653
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- Joined: Sat Aug 19, 2023 4:20 pm
Strange Signal Drift
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Coen
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Re: Strange Signal Drift
Drifts like that are usually caused by perspiration. The sweat disturbs the skin-gel-electrode interface. Try to maintain a comfortable cool environment for the subject. Be careful with fans because electric motors close to the subject may cause interference.
Best regards, Coen (BioSemi)
Best regards, Coen (BioSemi)