Neurocognitive adaptive computer interface method and system based on on-line measurement of the user's mental effort
First Claim
1. A method in human-computer interface for the computer to automatically react to the user'"'"'s neurocognitive workload without the user exerting muscle command action, by the computer changing a portion of a program being run by a computer;
- including the steps of;
(a) presenting the user with a battery of standard tasks and, while the user performs the tasks, detecting and analyzing the brain waves of the user with an EEG (electroencephalograph) device having a plurality of electrodes removably connected to the scalp of the user to determine a normative neurocognitive workload calibration function for the user while the user performs the tasks, and recording the normative neurocognitive calibration function in the computer system memory;
(b) the user operates the computer system using the computer system muscle operated input control means;
(c) simultaneously with (b) detecting and analyzing the brain waves of the user with an EEG (electroencephalograph) device having a plurality of electrodes removably connected to the scalp of the user, to determine on-line neurocognitive workload score from the user'"'"'s normative neurocognitive calibration function; and
(d) adjusting a portion of the program being run by the computer system if the user'"'"'s on-line neurocognitive workload score is a predetermined amount below or above a threshold value.
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Accused Products
Abstract
A human-computer interface uses neuroelectric signals recorded from the user'"'"'s scalp i.e. electroencephalograms (EEGs) to alter the program being run by the computer, for example to present less or more difficult material to the user, depending on the user'"'"'s neurocognitive on-line workload score. Each user is tested with a standard battery of tasks, while wearing an EEG hat, to calibrate a neurocognitive workload function. The calibrated function is user-specific and is obtained by modifying a neural network pattern analyzer which has been previously trained to index neurocognitive workload using data from a group of subjects performing the same battery of tasks.
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Citations
30 Claims
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1. A method in human-computer interface for the computer to automatically react to the user'"'"'s neurocognitive workload without the user exerting muscle command action, by the computer changing a portion of a program being run by a computer;
- including the steps of;
(a) presenting the user with a battery of standard tasks and, while the user performs the tasks, detecting and analyzing the brain waves of the user with an EEG (electroencephalograph) device having a plurality of electrodes removably connected to the scalp of the user to determine a normative neurocognitive workload calibration function for the user while the user performs the tasks, and recording the normative neurocognitive calibration function in the computer system memory; (b) the user operates the computer system using the computer system muscle operated input control means; (c) simultaneously with (b) detecting and analyzing the brain waves of the user with an EEG (electroencephalograph) device having a plurality of electrodes removably connected to the scalp of the user, to determine on-line neurocognitive workload score from the user'"'"'s normative neurocognitive calibration function; and (d) adjusting a portion of the program being run by the computer system if the user'"'"'s on-line neurocognitive workload score is a predetermined amount below or above a threshold value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
- including the steps of;
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16. A system in human-computer interface including a computer which runs a plurality of programs and which automatically reacts to the user'"'"'s neurocognitive workload without the user exerting muscle command action by the computer changing a portion of the program being run by a computer, including:
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(a) means for presenting the user with a battery of standard tasks;
means for detecting and analyzing the brain waves of the user comprising an EEG (electroencephalograph) device having a plurality of electrodes adapted to be removably connected to the scalp of the user to determine a normative neurocognitive workload calibration function for the user while the user performs the tasks and means for recording the normative neurocognitive calibration function comprising a portion of computer memory;(b) muscle operated input control means to operate the computer; (c) means for simultaneously with the operation of (b) to detect and analyze the brain waves of the user comprising said EEG device to determine on-line neurocognitive workload scores from the user'"'"'s normative neurocognitive calibration function; and (d) means to adjust a portion of the program being run by the computer if the user'"'"'s on-line neurocognitive workload score is a predetermined amount below or above a threshold. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification