期刊
BRAIN-COMPUTER INTERFACES
卷 9, 期 1, 页码 36-48出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/2326263X.2021.1993426
关键词
P300; healthcare access; language models; electroencephalography; amyotrophic lateral sclerosis
资金
- National Institute of Biomedical Imaging and Bioengineering [K23EB014326]
Brain-computer interfaces (BCI) like the P300 speller show promise in restoring communication for advanced-stage neuromuscular disease patients. Advances in research have improved typing speed and accuracy, with the potential for these methods to be generalized across different languages such as English, Spanish, and Greek. This could expand access to BCI systems for diverse populations, especially in developing regions.
Brain-computer interfaces (BCI) such as the P300 speller have the potential to restore communication to advanced-stage neuromuscular disease patients. Research has improved typing speed and accuracy through innovations including the use of language models. While significant advances have been made, implementations have largely been restricted to a single language, primarily English. It is unclear whether these improvements would extend to other languages that present potential technical hurdles due to different alphabets and grammatical structures. Here, we adapt a language model-based classifier designed for English to two other languages, Spanish and Greek, to demonstrate the generalizability of these methods. Online experimental trials with 30 healthy native English, Spanish, and Greek speakers showed no significant difference between performances using the different versions of the system (66.20 vs. 61.97 vs. 60.89 bits/minute). Extending these methods across languages allows for expanding access to BCI systems to other populations, particularly in the developing world.
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