Departamento de Tecnología Electrónica, Universidad de Málaga, 29071 Málaga, Spain.
ENESO Tecnología de Adaptación S.L., Parque Tecnológico de Andalucía, Málaga, Spain.
Comput Methods Programs Biomed. 2019 Apr;172:127-138. doi: 10.1016/j.cmpb.2019.02.015. Epub 2019 Mar 1.
Some neurodegenerative conditions can severely limit patients' capability to communicate because of the loss of muscular control. Brain-computer interfaces may help in the restoration of communication with these patients, bypassing the muscular activity, so that brain signals can be directly interpreted by a computer. There are many studies regarding brain-controlled spellers; however, these systems do not usually leap out of the lab because of technical and economic requirements. As a consequence, the potential end users do not benefit from these scientific advances in their daily life. The objective of this paper is to present a novel brain-controlled speller designed to be used by patients due to its versatility and ease of use.
The brain-computer interface research group of the University of Málaga (UMA-BCI) has developed a speller application based on the well-known P300 potential which can be easily installed, configured and used. The application supports the common P300 paradigms: the Row-Column Paradigm and the Rapid Serial Visual Presentation Paradigm. The inner core of the application is implemented with a widely used and studied platform, BCI2000, which ensures its reliability and allows other researchers to apply modifications at will in order to test new features. Ten naïve volunteers carried out exercises using the application and completed usability tests for evaluation purposes.
New subjects using the application managed to set up and use the proposed speller in less than an hour. The positive results of the evaluation through the usability tests support this application's ease of use.
A new brain-controlled spelling tool has been presented whose aim is to be used by severely paralyzed patients in their daily lives, as well as by researchers to test new spelling features.
一些神经退行性疾病会严重限制患者的交流能力，因为他们失去了肌肉控制。脑机接口可以帮助这些患者恢复交流，绕过肌肉活动，使大脑信号可以直接被计算机解读。有许多关于脑控拼写器的研究；然而，由于技术和经济要求，这些系统通常无法走出实验室。因此，潜在的最终用户无法在日常生活中受益于这些科学进步。本文的目的是介绍一种新的脑控拼写器，旨在供患者使用，因为它具有多功能性和易用性。
马拉加大学（UMA-BCI）的脑机接口研究小组开发了一种基于著名 P300 电位的拼写器应用程序，该应用程序易于安装、配置和使用。该应用程序支持常见的 P300 范式：行-列范式和快速序列视觉呈现范式。该应用程序的核心部分是用一个广泛使用和研究的平台 BCI2000 实现的，这确保了它的可靠性，并允许其他研究人员随意应用修改，以测试新功能。十名新手志愿者使用该应用程序进行了练习，并完成了可用性测试以进行评估。
新用户在不到一个小时的时间内成功设置并使用了所提出的拼写器。通过可用性测试的积极评价支持了该应用程序的易用性。
提出了一种新的脑控拼写工具，旨在供严重瘫痪患者在日常生活中使用，也供研究人员测试新的拼写功能。
