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Evaluating a 3D-printed switch as an alternative input device for computer-based cognitive assessments in stroke
Seong Ho Yun1, Sejin Park1, Jeehee Won1
1Assistive Technology Research Team for Independent Living, National Rehabilitation Center, Seoul, Republic of Korea.
Disability and Rehabilitation. Assistive Technology
|October 21, 2025
Summary
A 3D-printed switch offers a viable alternative for stroke survivors performing computer tasks. This accessible device matches commercial switch performance, enhancing usability and satisfaction for cognitive rehabilitation.
Area of Science:
- Rehabilitation Engineering
- Assistive Technology
- Neuroscience
Background:
- Stroke survivors often face motor impairments limiting traditional computer use.
- Accessing computer-based cognitive tasks is crucial for rehabilitation but challenging for individuals with motor deficits.
Purpose of the Study:
- To assess the feasibility of a 3D-printed switch as an alternative computer input device for stroke survivors.
- To compare the performance, usability, and satisfaction of a 3D-printed switch against commercial switches and keyboards.
Main Methods:
- A repeated-measures design involving 14 stroke survivors.
- Participants completed cognitive tasks (Go/No-go, Stop-Signal) using a 3D-printed switch, a commercial switch, and a keyboard.
- Cognitive performance, usability, and user satisfaction were evaluated.
Main Results:
- Both 3D-printed and commercial switches yielded faster reaction times and better response inhibition than the keyboard.
- Usability and satisfaction scores were significantly higher for both switch types compared to the keyboard.
- No significant differences were found between the 3D-printed and commercial switches in performance, usability, or satisfaction.
Conclusions:
- 3D-printed switches are feasible, cost-effective, and accessible assistive devices for stroke survivors.
- These devices can facilitate computer-based cognitive tasks, supporting rehabilitation efforts.
- 3D-printed switches present a promising alternative to commercial assistive technologies.
