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The circuit is typically made with one or more "ground" wires for EEG, though it's possible to use other EEG contacts as references (more often this is done virtually - the original recordings are made and digitized with a common ground, and later an average reference or Laplacian is used to isolate more local signals). EEG measures extremely weak ...


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It's not a stupid question in my opinion. However, it is perhaps naive. Brain function is very complex and how the different parts of the brain exactly relate to memory and function is still being worked out. We can monitor neural activity outside the brain by a number of methods. The most common one you might have come across is an electroencephalogram (EEG)...


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