electrode placement

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Newsgroups gmane.comp.science.openeeg.general
Message-ID <[email protected]>
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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