Eye-hand coordination using two irregular phosphene maps in simulated prosthetic vision for retinal prostheses
- Resource Type
- Conference
- Authors
- Cao, Xiaofei; Li, Heng; Lu, Zhuofan; Chai, Xinyu; Wang, Jing
- Source
- 2017 10th International Congress on Image and Signal Processing, BioMedical Engineering and Informatics (CISP-BMEI) Image and Signal Processing, BioMedical Engineering and Informatics (CISP-BMEI), 2017 10th International Congress on. :1-5 Oct, 2017
- Subject
- Bioengineering
Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Computing and Processing
Signal Processing and Analysis
Task analysis
Distortion
Prosthetics
Writing
Retina
Visualization
Electrodes
retinal prosthesis
simulated prosthetic vision
irregular phosphene map
eye-hand coordination
- Language
Clinical trials have shown different irregular characteristics of phosphene maps can be elicited by retinal prostheses. This study investigated the effect of distortion and dropout percentage on two novel eye-hand coordination tasks. 16 volunteers participated in two tasks on a touch screen: drawing geometric shapes and writing Chinese characters. The accuracy and efficiency in both tasks were recorded and compared while one irregular characteristic was changed. Results show that the accuracy and efficiency of both tasks decrease as the variability of distortion and dropout percentage increase, which may provide theoretical and practical significance for the clinical research on retinal prostheses.