Abstract: Electrical signals originating in the brain are measured and analyzed. In one embodiment, this technology serves to assess brain functioning as a means to evaluate cognitive functioning, to detect cognitive deficits such as those brought about by Alzheimer's, and to assess the efficacy of treatments for cognitive disorders. In another embodiment, which is an improvement on technology previously patented by the inventor, this technology serves to detect information in the brain as a means of detecting participation in specific organizations, acts, or criminal activity. In a third embodiment, this technology serves to evaluate the effectiveness of advertising, educational and training presentations by detecting the attention, information processing, and memory-related responses to these presentations as revealed by brain waves.

Abstract: A method for detecting deception or information possessed by a subject is disclosed. A subject is presented with known relevant stimuli, irrelevant stimuli, and critical relevant stimuli. Psychophysiological responses to the stimuli are measured and classified. A conclusion regarding the presence or absence of information is drawn from the classification. Many alternatives are disclosed such as measuring central nervous system responses to enhance the conclusion.

Abstract: The subject invention comprises a method whereby a deceptive individual will be required to perform a specific cognitive task in order to accomplish deception, which differs from a cognitive task that is performed by a truthful individual in response to the same instructions. The psychophysiological manifestations of the cognitive task or of the increased cognitive activity involved in the task are measured. The brain waves or other psychophysiological data are then analyzed to distinguish the types or levels of cognitive activity produced by the cognitive task for truthful and deceptive individuals.

Abstract: Electrical signals originating in the brain are measured and analyzed. In one embodiment, this technology serves to assess brain functioning as a means to evaluate cognitive functioning, to detect cognitive deficits such as those brought about by Alzheimer's, and to assess the efficacy of treatments for cognitive disorders. In another embodiment, which is an improvement on technology previously patented by the inventor, this technology serves to detect information in the brain as a means of detecting participation in specific organizations, acts, or criminal activity. In a third embodiment, this technology serves to evaluate the effectiveness of advertising, educational and training presentations by detecting the attention, information processing, and memory-related responses to these presentations as revealed by brain waves.

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.

Abstract: A method and apparatus for detecting concealment of hidden information in interrogative polygraphy is described which employs Event Related Brain Potentials (ERP). Various stimuli are presented to a subject and the P300 components of the subject's ERP's are monitored and analyzed. Three types of stimuli are presented, Probe which are relevant to the "crime", Irrelevant--having no bearing on the crime, and Target which require the subject to perform an act. If, and only if, the subject has guilty knowledge, the Probe stimuli, like the Target stimuli, elicit a large ERP and provide a guilty indication.