Cognitive Function Testing System Using Segmented Touch Panel Display
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Solution Overview
Problem
There is no reliable method for objectively diagnosing Attention Deficit/Hyperactivity Disorder (ADHD), and conventional Stroop interference tests suffer from interference between tasks printed on paper, leading to inaccurate results due to interference between upper and lower questions.
Innovation Solution
A cognitive function testing system utilizing a touch panel display with a position detecting section to record coordinate information and elapsed time, along with a brain activity recording section to collect data, allowing for efficient and objective measurement and estimation of cognitive functions related to ADHD.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If Stroop interference tests are printed on paper with multiple questions, then the test can be administered, but interference between upper and lower questions causes inaccurate results
Solution Approach 1:
The test is divided into individual question items that are displayed separately on a touch panel display device. Each question appears one at a time, eliminating the visual and cognitive interference that occurs when multiple questions are printed together on paper. The system segments the test content into discrete, independently presented units.
Solution Approach 2:
The patent replaces the mechanical paper-based test administration system with an electronic touch panel display system. This substitution allows for dynamic control of question presentation, eliminating the static interference inherent in printed formats where multiple questions must coexist on the same physical medium.
2Loss of information
If conventional paper-based Stroop tests are used, then the test can be administered, but detailed data collection is difficult
Solution Approach 1:
The touch panel display system automatically records and stores detailed response data including response times, accuracy, and patterns of errors. The system provides immediate feedback by capturing each interaction, eliminating the need for manual data collection and reducing information loss while maintaining manageable system complexity through automated processing.
Solution Approach 2:
The system creates digital copies of all test interactions and responses, storing them in a structured format that preserves complete information about each test trial. This digital copying mechanism eliminates information loss associated with manual paper-based recording while the automated nature of the process keeps system complexity manageable.
3Loss of time
If paper-based tests are used, then the test administration is simple, but response time measurement is inaccurate
Solution Approach 1:
The patent replaces manual timing methods with automated electronic timing through the touch panel system. The system automatically measures response times by recording the exact moment each question is displayed and when the subject provides a response, eliminating the inaccuracies of manual timing while maintaining ease of operation through the intuitive touch interface.
4Productivity
If multiple color samples are listed on a single paper sheet, then the test can be administered, but interference between questions occurs
Solution Approach 1:
The system segments test items into individually displayed questions on the touch panel, presenting one question at a time rather than listing multiple questions on a single sheet. This segmentation eliminates inter-question interference while maintaining test efficiency through the rapid, automated presentation and recording of each item.
Solution Approach 2:
The touch panel system employs periodic presentation of test items, displaying each question for a controlled duration and then proceeding to the next item. This periodic action allows for efficient sequential processing of multiple questions without the interference problems inherent in simultaneous visual presentation on paper.
Data Source
AI summary
Provided is a cognitive function testing system capable of efficiently and objectively measuring cognitive functions related to, for example, ADHD and easily collecting detailed data. In addition, a cognitive function estimation system is provided to enable estimating and determining the probability of an individual having a disorder such as ADHD after the cognitive functions related to, for example, ADHD have been efficiently and objectively measured. In contrast to the conventional Stroop interference test that uses paper, one problem is displayed on one screen, and not only the correctness result of the problem for the test subject, but also coordinate information for when the test subject responds by manipulating a touch panel display, are recorded in a problem answer table. Furthermore, an estimation calculation based on a learning algorithm can be used to estimate the degree of cognitive function of the test subject.