Development of an Input Operation for the Amyotrophic Lateral Sclerosis Communication Tool Utilizing EOG

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  • OHYA Tetsuya
    Department of Information and Communication Engineering, Tokyo Denki University
  • KAWASUMI Masashi
    Department of Information Systems and Multimedia Design, Tokyo Denki University

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  • 眼電図によるALSコミュニケーションツールの入力動作の研究
  • ガンデンズ ニ ヨル ALS コミュニケーション ツール ノ ニュウリョク ドウサ ノ ケンキュウ

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Description

This paper describes an communication tool that utilizes eye movements. Amyotrophic lateral sclerosis (ALS) attacks the motor neurons, nerve cells in the brain and spinal cord that control the body's voluntary muscles. As the disease progresses, ALS patients gradually lose the use of their hands, arms, legs, and neck muscles, ultimately becoming paralyzed. Once paralyzed, it is difficult to convey intentions or desires to other. However, thought process, personality, intelligence, and memory are not affected. ALS patients usually maintain control of their eye muscles, and can therefore use eye movement for communication. Communication tools that use EOG have the problems of incorrect input and malfunctioning. In our research, we have successfully developed an input operation that resolves these problems. The input operation results show a high success ratio. Incorrect input and malfunctioning are improved by the new input operation.

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