ballerina:

thanks for the response and suggestions. I'm certainly open to hearing anything.

your statement about my set up is a good one -- I've tested my set up with multimeter is, etc. -- and that all is working properly.

the part that confuses me -- I get sleep disturbance -- which kind of indicates that maybe I'm too far forward towards the forehead in my electrode placement (i.e. near or on the DPLFC - which is reported in many research papers to disturb sleep) -- but then when I measure - that's not what the measurements indicate.....

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