文献类型：期刊文献

英文题名：Continuous use of ERP-based BCIs with different visual angles in ALS patients

作者：Jin, Jing[1]; Allison, Brendan Z.[3]; Zhang, Yu[1]; Chen, Yan[2]; Zhou, Sijie[1]; Dong, Yi[2]; Wang, Xingyu[1]; Chchocki, Andrzej[4,5,6]

机构：[1] Key Laboratory of Advanced Control and Optimization for Chemical Processes, Ministry of Education, East China University of Science and Technology, Shanghai, China; [2] Department of Neurology, Huashan hospital, Fudan University, Shanghai, China; [3] Department of Cognitive Science, University of California at San Diego, San Diego, CA, United States; [4] Laboratory for Advanced Brain Signal Processing, Brain Science Institute, RIKEN, Wako-shi, Japan; [5] Systems Research Institute PAS, Warsaw, Poland; [6] Nicolaus Copernicus University [UMK], Torun, Poland

年份：2017

外文期刊名：arXiv

收录：EI(收录号：20200380546)

语种：英文

外文关键词：Brain - Neurodegenerative diseases - Neurons - Online systems

摘要：Objective: Amyotrophic lateral sclerosis (ALS) is a rare disease, but is also one of the most common motor neuron diseases, and people of all races and ethnic backgrounds are affected. There is currently no cure. Brain computer interfaces (BCIs) can establish a communication channel directly between the brain and an external device by recognizing brain activities that reflect user intent. Therefore, this technology could help ALS patients in promoting functional independence through BCI-based speller systems and motor assistive devices. Methods: In this paper, two kinds of ERP-based speller systems were tested on 18 ALS patients to: (1) assess performance when they spelled 42 characters online continuously, without a break; and (2) to compare performance between a matrix-based speller paradigm (MS-P, mean visual angle 6?) and a new speller paradigm that used a larger visual angle called the large visual angle speller paradigm (LS-P, mean visual angle 8?). Results: Although results showed that there were no significant differences between the two paradigms in accuracy trend over continuous use (p>0.05), the fatigue during the LS-P condition was significantly lower than that of MS-P (p Copyright ? 2017, The Authors. All rights reserved.