Rehabilitation Assistance Device for Adaptive Cognitive Load Control

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Solution Overview

Problem

Existing rehabilitation techniques fail to control the cognitive load given to users effectively.

Innovation Solution

A rehabilitation support apparatus and method that uses a head-mounted display to present cognitive tasks in a three-dimensional virtual space, adjusting the complexity of information and timing to control cognitive load through avatar objects and background distractions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If cognitive tasks are presented in rehabilitation, then cognitive function recovery is promoted, but cognitive load becomes uncontrolled and may cause psychological burden

Engineering Contradiction:

Improvecognitive function recoveryVSAvoidcognitive load control

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The system dynamically adjusts cognitive load parameters including information complexity, presentation timing, and task difficulty based on user performance and physiological state, transforming fixed cognitive tasks into adaptable ones that optimize recovery while preventing overload

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The system implements real-time feedback mechanisms that monitor user cognitive performance and physiological responses, using this data to continuously adjust task parameters and provide appropriate feedback to both users and therapists for optimized rehabilitation progression

Inventive Principle:

Principle #23Feedback

2Productivity

If information complexity is increased to enhance cognitive processing, then cognitive recovery is accelerated, but psychological burden increases

Engineering Contradiction:

Improvecognitive recovery speedVSAvoidpsychological burden

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The system transforms static cognitive tasks into dynamic ones where information complexity, presentation rate, and task requirements continuously adapt based on real-time user performance and physiological state, allowing optimization of recovery speed while preventing psychological overload

Inventive Principle:

Principle #15Dynamics

Data Source

PatentEP3936106B1Rehabilitation assistance device, method therefor, and program

Publication Date: 2025.09.03 MEDIVR INC

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AI summary

To control a cognitive load to be given to the cognitive function of a user in rehabilitation, this invention provides a rehabilitation support apparatus including a detector that detects a three-dimensional rehabilitation action of the user, a display controller that generates, in a three-dimensional virtual space, an avatar object that moves in accordance with the detected rehabilitation action and a target object to be visually recognized by the user and displays these on a display, a notifier that notifies generation of the target object, and a cognitive load controller that gives a cognitive load to the user by generating the target object after an elapse of a predetermined time from the notification of the generation position of the target object.