System and method for neurological activity signature determination, discrimination, and detection

A brain-computer interfacing system for automatically correlating neurological activity of a subject to a predetermined physiological response comprising:

• at least one transducer sensing signals indicative of the neurological activity;
• a processing engine coupled to said transducer, said processing engine in a system training mode executing a simultaneous sparse approximation comprising Simultaneous Matching Pursuits, upon a collection of signals sensed by said transducer to generate signature information corresponding to the predetermined physiological response;
• and,
• a detector coupled to said transducer, said detector in a system utilization mode monitoring the sensed signals and generating upon detection of a sensed signal substantially characterized by said signature information a control signal for actuating a control action according to the predetermined physiological response.

A method for automatically correlating neurological activity of a subject to a predetermined physiological response comprising the steps of:

• actuating a sensor to sense signals indicative of the neurological activity;
• executing in a processor a simultaneous sparse approximation comprising Simultaneous Matching Pursuits, jointly upon a group of the signals sensed to extract therefrom multi-dimensional signature information corresponding to the predetermined physiological response;
• and,
• monitoring subsequently sensed signals to selectively detect therefrom sensed signals substantially characterized by said signature information;
• and,
• generating a control signal responsive to said detection for actuating a control action according to the predetermined physiological response.