The document discusses the design of a rehabilitation game for patients with visual field defects caused by brain injuries. It begins by explaining the motivation for focusing on this topic, as 1/3 of stroke patients experience some form of visual disability. It then defines the specific visual defect of hemianopsia and discusses current rehabilitation methods, noting that existing computer-based approaches are boring. The document outlines communication research conducted including playtesting an initial rhythm game concept. It proposes a fishing game interfaced for specific visual defects and controlled by eye-tracking as a more engaging design. Plans for further testing and improvements are noted with an August deadline.

1. Rehabilitation game for the
patients with Visual Field Defect
Eri Shiroyama
Mock-exam 31.05.2011

2. Eri Shiroyama
- Fukuoka / Japan
- International experience of
working with other people
who are totally different from
my background
- Consultant & Researcher by
creating solution with media
and technology
- Netherlands

3. How can we design a rehabilitation
game for the patients with visual
field defect after brain injury?
Introduction - why did I chose the subject?
What is “Visual field defect after brain injury”?
What kind of rehabilitation already exists for the patients?
Communication Research - Play test and Interviews -
What kind of Game Design is suitable for “Hemianopsia”
patients?

4. INDEX
How can we design a rehabilitation game for the
patients with visual field defect after brain injury?
Introduction - why did I chose the subject?
What is “Visual field defect after brain injury”?
What kind of rehabilitation already exists for the patients?
Communication Research - Play test and Interviews -
What kind of Game Design is suitable for “Hemianopsia”
patients?

5. Introduction
- Why did I chose the subject? -
- Stroke ↑
- Several rehabilitation game
for paralysis of one side of the
body
- Vogels! → Start to get
interested in stroke patients
- 1/3 Visual disability in
stroke patients
- Non digital game and
demand for rehabilitation of
visual defect

6. Introduction
- Why did I chose the subject? -
But visual disability from brain injury is totally
different from problem of eye itself....

7. INDEX
How can we design a rehabilitation game for the
patients with visual field defect after brain injury?
Introduction - why did I chose the subject?
What is “Visual field defect after brain injury”?
What kind of rehabilitation already exists for the patients?
Communication Research - Play test and Interviews -
What kind of Game Design is suitable for “Hemianopsia”
patients?

8. What is “Visual field
defect after brain injury”?
Hemianopsia
Half or quarter of visual fields are defected depending on
which optic nerve are injured.

9. INDEX
How can we design a rehabilitation game for the
patients with visual field defect after brain injury?
Introduction - why did I chose the subject?
What is “Visual field defect after brain injury”?
What kind of rehabilitation already exists for the patients?
Communication Research - Play test and Interviews -
What kind of Game Design is suitable for “Hemianopsia”
patients?

10. What kind of rehabilitation already
exists for the patients ?
There is new rehabilitation method for Hemianopsia patients by
using computer
Stimulate the boarder between Visual luck area and Visible area

11. What kind of rehabilitation already
exists for the patients ?
Medical thesis by Kagoshima University . 2007

12. What kind of rehabilitation already
exists for the patients ?
But there is a Big problem...

13. IT’S TOO
BORING

14. INDEX
How can we design a rehabilitation game for the
patients with visual field defect after brain injury?
Introduction - why did I chose the subject?
What is “Visual field defect after brain injury”?
What kind of rehabilitation already exists for the patients?
Communication Research - Play test and Interviews -
What kind of Game Design is suitable for “Hemianopsia”
patients?

15. Communication Research
- Lots of expert’s Help for my project -
Play test#1 & Interviews Play test#1 & Interviews
@ Kyushu university hospital @ Nagao hospital
Interviews Helping for finding the patients
@ Kagoshima university hospital @ Silverfit

16. Communication Research
- Play test and Interviews -
- Play test#1 in Japan
- Idea*1 (Rhythm game) → Failed
- But I learned a lot from the
play test and interviews
- The way of stimulation wasn’t correct
×Line ○Points
- Too difficult rule for the patients
- Should be more familiar with elderly
people
- Can’t handle multiple keyboard

17. INDEX
How can we design a rehabilitation game for the
patients with visual field defect after brain injury?
Introduction - why did I chose the subject?
What is “Visual field defect after brain injury”?
What kind of rehabilitation already exists for the patients?
Communication Research - Play test and Interviews -
What kind of Game Design is suitable for “Hemianopsia”
patients?

18. What kind of Game Design is suitable
for “Hemianopsia” patients?
1. Eye tracking by webcam
- The game will know where the patients are looking at
- They can play the game without watch by care persons (because patients has to
keep their eyes fixed at center of computer)
- The patients can rehabilitate in their own house

19. What kind of Game Design is suitable
for “Hemianopsia” patients?
2. Idea*2 (Fishing game)
- Simple art and Sound
(If it is too much, the different parts of
nerves will be stimulated )
- Simple rule and One button
game
- Art performance for only A float =
feedback screen stimulation
point
- Correct several kinds of fish
and make own aquarium

20. What kind of Game Design is suitable
for “Hemianopsia” patients?
3. Interface design
Choose one of the 4 locations to place the interface
(Depends on where is the visual disability)

21. What kind of Game Design is suitable
for “Hemianopsia” patients?

22. Planning
Play test #2 Play test #3 Project
in Belgium in Belgium Deadline
Product Improve the game
Supportive narrative
June July August

23. Reference
• Results from the National Health and Nutrition
Examination Survey (1988-1994)
• Kazumi Kawahira etc , 2007| Quadranopsia
improved by repetitive visual stimulation using a
Computerized visual field training machine in a
stroke patient
• Polaski and Tatro, 1996 | Visual field defects
associated with hemianopia
• Hemispatial Neglect: Half the World Ends With You |
http://troublethinking.wordpress.com/2010/07/09/
hemispatial-neglect-half-the-world-ends-with-you/

24. Thank you
Any questions?

25. Two kinds of visual defect
• Hemispatial Neglect • Hemianopsia
Half of word doesn’t exist
Half or quarter of visual field defect
for neglect patients
Not a lot of people have
Heavy mental problem
heavy mental problem
No efficient rehabilitation There is some rehabilitation method