In response to your question about EEG's and being able to
"fingerprint" an individual's brainwaves:
First of all, I am a neurologist. My experience with EEG is largely
clinical. If you've ever looked at an EEG, you'll see pages and
pages of seemingly random wave forms. The range of "normal" is pretty
broad even for the same individual. The EEG also has different patterns
depending on the "state" of the individual--i.e., awake, asleep, relaxed, etc.
The other aspect of EEG recordings is sorting out the brain waves from
"background noise" (eye movements, chewing, a door slamming all affect
the EEG trace). The idea of EEG fingerprinting, though appealing,
is pretty remote. It's about as unique an identifier as haircolor!
I'm not sure what your screenplay is about, but EEG fingerprinting
would have to be pretty serious science fiction right now.
