Acrovirt uses an ultra-sensitive electrical current detector, which can distinguish minute current changes on the femto-ampere order (10-15 amps). This level of sensitivity is one million times more sensitive than needed to detect currents generated by a single neuron (10-9 amps) and is a billion-fold improvement over the next best currently available sensor technology. We can target and phase-lock on specific deep brain signals emanating from brain substrates that process cognitive attributes like emotion, decision and learning, while filtering out most other neural activity. Data collected from an individual over time in conjunction with situational information can be used to generate a personalized virtual library for comparison and prediction of human behavior.