If I were going to use a 2 channel eeg and measure the two spots "p3" and "p4", where would I place the five electrodes on my head? If I understand correctly, there's a positive and negative for each channel as well as a single ground. If someone could let me know where each of these would go it would help a lot.
I'm also not completely clear on prepping the areas beforehand. Can I just use rubbing alcohol or do I need to get a special product for that?
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