Hasegawa's Dementia Scale | The Memory Keeper Across the River of Time

Welcome to Hasegawa's Dementia Scale | The Memory Keeper Across the River of Time

Instructions:

There is no time limit for this test. Please answer at your own pace.
This test consists of 12 questions in total.
The next question will appear automatically after you select an answer.
You can return to modify your answer using the "Previous" button.
All test results on this site are for reference only and do not constitute professional advice.

Hasegawa's Dementia Scale (HDS-R) | The Memory Keeper Across the River of Time

1. What Is Hasegawa's Dementia Scale?

Hasegawa's Dementia Scale - Revised (HDS-R for short) was developed by Professor Kazuo Hasegawa of St. Marianna University School of Medicine in Japan in 1974 and revised in 1991 . It is currently one of the most widely used early screening tools for dementia in Asia.

This scale focuses on **recent memory, general knowledge, and orientation**, can sensitively capture the subtle changes in early cognitive decline among the elderly, and is an important line of defense for keeping watch over the mental health of the elders in your family.

2. Description of Assessment Dimensions (Adaptation Notes)

This scale has been **contextually adapted** for the online self-assessment scenario. The original scale is usually guided by a doctor's oral presentation, whereas this version uses text-and-image logic conversion to examine the following 5 core areas:

Time and Space Orientation: The ability to perceive the current time and space.
Immediate and Delayed Memory: The ability to take in new information and retain it in the short term.
Calculation and Reverse Thinking: The depth to which the brain processes logic and numbers.
Object Naming and Association: Examines the connection between verbal expression and visual memory.
General Knowledge and Social Perception: Mastery of basic knowledge about the surrounding environment.

3. Notes for the Test

Before taking the test, please note the following:

Please take it in a **quiet, distraction-free** environment and make sure the test-taker is emotionally stable.
This test is mainly for **preliminary screening and self-monitoring** and cannot replace a professional physician's clinical diagnosis.
If the score falls in an abnormal range, it is recommended to accompany the elder to the hospital's neurology department or memory clinic for in-depth assessment.
If you are helping an elder fill it in, please try to reflect their true first reaction and avoid giving too many hints.

4. Scoring Reference

This test has a full score of 30. According to international clinical standards:
- 24 points and above: normal cognitive function
- 20-23 points: risk of mild cognitive impairment
- 10-19 points: tendency toward moderate cognitive impairment
- Below 10 points: tendency toward severe cognitive impairment

Hasegawa's Dementia Scale | The Memory Keeper Across the River of Time