Methods for determining whether the brain activity of a human subject in response to a stimulus of interest or question of interest is characteristic of a state of interest, such as a deceptive state or a truthful state, are disclosed. Some methods include the use of control questions, including truthful...http://www.google.de/patents/US7899524?utm_source=gb-gplus-sharePatent US7899524 - Systems and methods for detecting deception by measuring brain activity
