Dementia Determination via Consecutive Press Ratio Analysis
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Solution Overview
Problem
Current methods for determining dementia levels lack effectiveness in utilizing everyday device interaction data to assess cognitive impairment and dementia progression.
Innovation Solution
A system that calculates a consecutive press ratio from button presses on an operating device, used to determine dementia levels by analyzing the frequency and timing of button presses, with higher ratios indicating higher dementia levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional dementia assessment methods are used, then clinical expertise is required for accurate diagnosis, but this increases the complexity and cost of the determination system
Solution Approach 1:
The system automatically analyzes button press patterns from everyday device operations to determine dementia levels without requiring clinical expertise. The determination unit processes operation data autonomously, eliminating the need for medical professionals to manually assess cognitive function while maintaining high accuracy through objective quantitative metrics.
Solution Approach 2:
The patent replaces subjective clinical assessment with objective automated analysis of operation patterns. Instead of relying on medical expertise to interpret patient behavior, the system uses computational algorithms to detect consecutive press ratios and other quantitative metrics from device interactions, substituting mechanical/clinical evaluation with automated information processing.
2Measurement precision
If specialized dementia assessment tools are deployed, then accurate dementia level determination can be achieved, but this increases the cost and reduces ease of operation
Solution Approach 1:
The system uses a common operating device that users already interact with daily for both its original function and dementia assessment. The button press data collected during normal device operation is simultaneously used for controlling the device and for analyzing cognitive function, eliminating the need for separate specialized assessment tools and maintaining user convenience.
Solution Approach 2:
The system passively collects operation data during everyday use without requiring users to perform specific assessment tasks. Users continue their normal interactions with the device while the system automatically analyzes their button press patterns, making the assessment process transparent and convenient while maintaining high detection accuracy.
3Loss of time
If frequent button presses are monitored to detect dementia, then early detection capability is improved, but this increases the quantity of data to be processed
Solution Approach 1:
The system extracts only the critical feature of consecutive press ratios from the overall operation data, rather than processing all button press information. By focusing specifically on the temporal pattern of consecutive presses within predetermined intervals, the system achieves early dementia detection while minimizing data processing requirements through selective feature extraction.
Solution Approach 2:
The system transforms raw operation data into a simplified metric (consecutive press ratio) that captures dementia-related information efficiently. By changing the parameter representation from detailed temporal sequences to a consolidated ratio metric, the system enables early detection while reducing data complexity and processing burden.
Data Source
AI summary
A dementia determination system includes: an obtainer that obtains a consecutive press ratio which is a ratio of a total number of consecutive presses of a button of an operating device to a total number of presses of the button of the operating device, the consecutive presses being presses of the button made at time intervals each shorter than or equal to a reference time interval, the operating device being used by a user to operate an electric device; a determiner that determines a dementia level of the user based on the consecutive press ratio obtained by the obtainer; and an outputter that outputs dementia information indicating the dementia level determined by the determiner, wherein the determiner determines that the dementia level is higher as the consecutive press ratio is higher.