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Evaluating person-centered factors associated with brain–computer interface access to a commercial augmentative and alternative communication paradigm
Assistive Technology ( IF 2.170 ) Pub Date : 2021-03-05 , DOI: 10.1080/10400435.2021.1872737
Kevin M Pitt 1 , Jonathan S Brumberg 2
Affiliation  

ABSTRACT

Current BCI-AAC systems largely utilize custom-made software and displays that may be unfamiliar to AAC stakeholders. Further, there is limited information available exploring the heterogenous profiles of individuals who may use BCI-AAC. Therefore, in this study, we aimed to evaluate how individuals with amyotrophic lateral sclerosis (ALS) learned to control a motor-based BCI switch in a row-column AAC scanning pattern, and person-centered factors associated with BCI-AAC performance. Four individuals with ALS completed 12 BCI-AAC training sessions, and three individuals without neurological impairment completed 3 BCI-AAC training sessions. To assess person-centered factors associated with BCI-AAC performance, participants completed both initial and recurring assessment measures including levels of cognition, motor ability, fatigue, and motivation. Three of four participants demonstrated either BCI-AAC performance in the range of neurotypical peers, or an improving BCI-AAC learning trajectory. However, BCI-AAC learning trajectories were variable. Assessment measures revealed that two participants presented with a suspicion for cognitive impairment yet achieved the highest levels of BCI-AAC accuracy with their increased levels of performance being possibly supported by largely unimpaired motor skills. Motor-based BCI switch access to a commercial AAC row-column scanning may be feasible for individuals with ALS and possibly supported by timely intervention.



中文翻译:

评估与脑机接口访问商业增强和替代通信范式相关的以人为中心的因素

摘要

当前的 BCI-AAC 系统主要使用 AAC 利益相关者可能不熟悉的定制软件和显示器。此外,探索可能使用 BCI-AAC 的个人的异质概况的可用信息有限。因此,在本研究中,我们旨在评估肌萎缩侧索硬化症 (ALS) 患者如何学会以行列 AAC 扫描模式控制基于运动的 BCI 开关,以及与 BCI-AAC 性能相关的以人为中心的因素。4 名 ALS 患者完成了 12 次 BCI-AAC 培训课程,3 名无神经功能障碍的患者完成了 3 次 BCI-AAC 培训课程。为了评估与 BCI-AAC 表现相关的以人为本的因素,参与者完成了初始和重复评估措施,包括认知水平、运动能力、疲劳和动机。四分之三的参与者要么在神经典型同龄人中表现出 BCI-AAC 表现,要么表现出改善的 BCI-AAC 学习轨迹。然而,BCI-AAC 的学习轨迹是可变的。评估措施显示,两名被怀疑患有认知障碍的参与者却达到了 BCI-AAC 准确性的最高水平,他们的表现水平的提高可能得到了基本上未受损的运动技能的支持。基于电机的 BCI 开关接入商用 AAC 行列扫描对于 ALS 患者来说可能是可行的,并且可能得到及时干预的支持。评估措施显示,两名被怀疑患有认知障碍的参与者却达到了 BCI-AAC 准确性的最高水平,他们的表现水平的提高可能得到了基本上未受损的运动技能的支持。基于电机的 BCI 开关接入商用 AAC 行列扫描对于 ALS 患者来说可能是可行的,并且可能得到及时干预的支持。评估措施显示,两名被怀疑患有认知障碍的参与者却达到了 BCI-AAC 准确性的最高水平,他们的表现水平的提高可能得到了基本上未受损的运动技能的支持。基于电机的 BCI 开关接入商用 AAC 行列扫描对于 ALS 患者来说可能是可行的,并且可能得到及时干预的支持。

更新日期:2021-03-05
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