Random-Interval Repetition Testing Control With Adaptive Stimuli
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Solution Overview
Problem
Existing RIR testing methods are time-consuming, potentially causing undue stress to test subjects, which is undesirable in applications like EMDR therapy.
Innovation Solution
A computer-implemented method for controlling a Random Interval Repetition (RIR) testing apparatus that dynamically adjusts stimulus adaptation rates and allowable reaction times based on reaction input correctness and time, with features like altering stimulus characteristics and incorporating visual, auditory, and tactile inputs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional RIR testing methods are used, then measurement accuracy is maintained, but testing duration becomes excessively long causing stress to subjects
Solution Approach 1:
The stimulus parameters are made dynamic rather than fixed. The system continuously adapts stimulus characteristics (movement speed, size, contrast, interval timing) based on real-time subject performance feedback, allowing the testing protocol to optimize duration while maintaining measurement validity through performance-based parameter adjustment
Solution Approach 2:
A feedback loop is implemented where subject reaction times and accuracy are continuously monitored and fed back to adjust stimulus parameters. This closed-loop control enables the system to maintain measurement accuracy by adapting to subject performance while preventing excessive duration through dynamic parameter modification when performance thresholds are met
2Productivity
If stimulus parameters are increased to speed up testing, then testing efficiency improves, but subject stress and cognitive load increase excessively
Solution Approach 1:
Stimulus parameters are dynamically adjusted based on subject performance rather than being statically maximized. The system increases difficulty parameters (speed, interval reduction) only when performance thresholds are met, and reduces parameters when performance deteriorates, creating an adaptive protocol that optimizes efficiency without consistently applying high-stress conditions
Solution Approach 2:
Multiple stimulus parameters are changed in coordination based on performance feedback. The system modifies parameters such as stimulus interval timing, movement speed, size, and contrast simultaneously or sequentially, allowing efficient testing progression while maintaining subject comfort through coordinated parameter adjustment rather than isolated parameter maximization
Data Source
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AI summary
A computer-implemented method of controlling a Random Interval Repetition, RIR, testing apparatus; the method comprising: monitoring a stimulus presented on an output interface of the RIR testing apparatus; monitoring a reaction input to the RIR testing apparatus in reaction to the stimulus; based on at least one of: a reaction time of the reaction input; and a correctness of the reaction input, changing at least one of: an adaptation rate of the stimulus; and an allowable reaction time during which a subsequent reaction to the stimulus should be input; and repeating the method at least once.