Platforms to implement signal detection metrics in adaptive response-deadline procedures
Inventors
Alailima, Titiimaea • Bower, Jeffrey • Omernick, Matthew • Martucci, Walter Edward • Piper, Adam • Pierce, Paul Rand • Mateus, Ashley • Kellogg, Scott
Assignees
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Publication Number
US-11839472-B2
Publication Date
2023-12-12
Expiration Date
Abstract
Example systems, methods, and apparatus, including cognitive platforms, are provided for applying signal detection metrics in computer-implemented adaptive response-deadline procedures to data collected based at least in part on user interaction(s) with computerized tasks and/or interferences. The apparatus can include a response classifier for generating a quantifier of the cognitive abilities of an individual. The apparatus also can be configured to adapt the tasks and/or interferences to enhance the individual's cognitive abilities.
Core Innovation
The invention generates a quantifier of cognitive skills in an individual using a response classifier. It presents a task with interference at a user interface, where one or more of the task and the interference are time-varying and having a response deadline that imposes a limited time period for receiving at least one type of response. The user interface measures data indicative of two or more differing types of responses to the task or to the interference, and receives data indicative of a first response to the task and a second response to the interference.
The processing unit analyzes the first and second responses to compute at least one response profile representative of performance of the individual. From the response profile, the processing unit determines a decision boundary metric comprising a quantitative measure of a tendency of the individual to provide an impulsive response to the task with the interference and a conservative response to the task with the interference. The response classifier is executed based at least in part on the computed values of the decision boundary metric to generate a classifier output indicative of the cognitive response capabilities of the individual.
The apparatus applies at least one adaptive procedure to modify the task and/or the interference at the user interface so that analysis indicates a modification of the at least one response profile. The adaptive procedure is configured to modify a time-varying characteristic of the task and/or the interference, including modifying the response deadline to modify a performance characteristic toward an impulsive response profile or a conservative response profile. By modifying time-varying characteristics and response deadlines, measurements at different response deadlines provide different data as to a first decision boundary or a second decision boundary of the decision boundary metric, thereby indicating modification of cognitive response capabilities.
Claims Coverage
The independent claims cover three core aspects: generating a quantifier of cognitive skills using a response classifier with impulsive-versus-conservative decision boundary metrics under response deadlines, computer-implemented execution of the same method, and enhancing cognitive skills by adaptively modifying the task/interference to shift decision boundary(s). The inventive features below are drawn from the independent claims.
Time-varying task with time-limited response deadline and interference
Rendering a task with an interference at the user interface, wherein one or more of the task and the interference are time-varying and having a response deadline such that the user interface imposes a limited time period for receiving at least one type of response from an individual.
Measuring two or more differing response types
Configuring the user interface to measure data indicative of two or more differing types of responses to the task or to the interference.
Response profiles from first and second responses
Receiving data indicative of a first response of an individual to the task and a second response of the individual to the interference, and analyzing the data to compute at least one response profile representative of performance of the individual.
Decision boundary metric for impulsive-versus-conservative tendencies
Determining a decision boundary metric from the at least one response profile, where the decision boundary metric comprises a quantitative measure of a tendency of the individual to provide at least one of an impulsive response to the task with the interference and a conservative response to the task with the interference.
Response classifier output indicative of cognitive response capabilities
Executing the response classifier based at least in part on the computed values of the decision boundary metric to generate a classifier output indicative of the cognitive response capabilities of the individual.
Adaptive procedure shifting response profiles and decision boundaries
Applying at least one adaptive procedure to modify the task and/or the interference at the user interface such that analysis indicates a modification of the at least one response profile, wherein the adaptive procedure modifies a time-varying characteristic and modifies the response deadline to provide different data as to a first decision boundary or a second decision boundary of the decision boundary metric.
Enhancing cognitive skills by deriving modification of decision boundary metric
Adapting the primary task and/or the interference based at least in part on the computed decision boundary metric to derive a modification in the computed decision boundary metric, such that a further response modifies the decision boundary metric as compared to an earlier response, thereby indicating a modification of cognitive response capabilities.
Across the independent claims, the shared inventive core is presenting time-varying task and interference with a response deadline, measuring at least two differing response types, computing response profiles, deriving a decision boundary metric quantifying impulsive versus conservative tendencies, and executing a response classifier or adapting the task to enhance cognitive skills using that metric, with adaptive procedures that modify time-varying characteristics and response deadlines to shift decision boundary(s).
Stated Advantages
Generates a quantifier of cognitive skills in an individual.
Generates a classifier output indicative of cognitive response capabilities of the individual.
Indicates a modification of the individual’s cognitive response capabilities based on changes to computed decision boundary metric and response profiles.
Documented Applications
Monitoring or quantifying cognitive skills and cognitive response capabilities of an individual using classifier output.
Enhancing cognitive skills by adaptively modifying task and interference to modify impulsive versus conservative decision boundary metric(s).
Training or medication-related decision support, including assessing adverse-event likelihood and recommending or evaluating treatment regimens.
Clinical/condition-related context including attention deficit/impulsivity and cognitive condition, disease, or executive function disorder status or progression.
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