Abstract: A method for detecting electrical brain response in a subject includes presenting stimuli to the subject, and detecting electrical brain responses therefrom. The responses are analyzed for uncovering event related brain potentials. In one embodiment, the stimuli are presented with a predetermined inter-stimulus interval, and the subject is informed of a predetermined time range within which blinking is permitted. In another embodiment, Probe stimuli relevant to a situation under investigation are presented, and include acronyms.

Abstract: A method of detecting information stored in the brain of a subject includes presenting to the subject in oddball series Probe, Target, and Irrelevant stimuli. The Probe stimuli are relevant to a situation under investigation; the Irrelevant stimuli are not; and the Target stimuli are identified to the subject as being noteworthy, and in response to which the subject is instructed to perform a task. The Target stimuli like the Probe stimuli are relevant to the situation under investigation. The method also includes detecting electrical brain responses for each of the stimuli; analyzing the responses for uncovering an event related brain potential; and comparing the Probe responses with the Target responses to determine whether the subject recognizes the Probes, and comparing the Probe responses with the Irrelevant responses to determine whether the subject does not recognize the Probes.

Abstract: A method and apparatus for multifaceted electroencephalographic response analysis (MERA) is described. MERA involves presenting stimuli to a subject through at least one of the visual and auditory modalities, recording electrophysiological brain responses indicative of information processing in response to said stimuli, and analyzing multiple features of said brain responses. This technique is used both to detect concealed information in the brain and to communicate directly from a brain to a computer, and thus to command computers and also to command mechanical devices.