Peters Betts, Eddy Brandon, Galvin-McLaughlin Deirdre, Betz Gail, Oken Barry, Fried-Oken Melanie
Consortium for Accessible Multimodal Brain-Body Interfaces, United States.
REKNEW Projects, Institute on Development and Disability, Department of Pediatrics, Oregon Health and Science University, Portland, OR, United States.
Front Hum Neurosci. 2022 Jul 27;16:952380. doi: 10.3389/fnhum.2022.952380. eCollection 2022.
Augmentative and alternative communication brain-computer interface (AAC-BCI) systems are intended to offer communication access to people with severe speech and physical impairment (SSPI) without requiring volitional movement. As the field moves toward clinical implementation of AAC-BCI systems, research involving participants with SSPI is essential. Research has demonstrated variability in AAC-BCI system performance across users, and mixed results for comparisons of performance for users with and without disabilities. The aims of this systematic review were to (1) describe study, system, and participant characteristics reported in BCI research, (2) summarize the communication task performance of participants with disabilities using AAC-BCI systems, and (3) explore any differences in performance for participants with and without disabilities. Electronic databases were searched in May, 2018, and March, 2021, identifying 6065 records, of which 73 met inclusion criteria. Non-experimental study designs were common and sample sizes were typically small, with approximately half of studies involving five or fewer participants with disabilities. There was considerable variability in participant characteristics, and in how those characteristics were reported. Over 60% of studies reported an average selection accuracy ≤70% for participants with disabilities in at least one tested condition. However, some studies excluded participants who did not reach a specific system performance criterion, and others did not state whether any participants were excluded based on performance. Twenty-nine studies included participants both with and without disabilities, but few reported statistical analyses comparing performance between the two groups. Results suggest that AAC-BCI systems show promise for supporting communication for people with SSPI, but they remain ineffective for some individuals. The lack of standards in reporting outcome measures makes it difficult to synthesize data across studies. Further research is needed to demonstrate efficacy of AAC-BCI systems for people who experience SSPI of varying etiologies and severity levels, and these individuals should be included in system design and testing. Consensus in terminology and consistent participant, protocol, and performance description will facilitate the exploration of user and system characteristics that positively or negatively affect AAC-BCI use, and support innovations that will make this technology more useful to a broader group of people.
https://www.crd.york.ac.uk/prospero/display_record.php?ID=CRD42018095345, PROSPERO: CRD42018095345.
增强和替代沟通脑机接口（AAC-BCI）系统旨在为严重言语和身体障碍（SSPI）患者提供无需自主运动的沟通途径。随着该领域朝着AAC-BCI系统的临床应用发展，涉及SSPI患者的研究至关重要。研究表明，AAC-BCI系统在不同用户之间的性能存在差异，并且在残疾用户与非残疾用户的性能比较中结果不一。本系统评价的目的是：（1）描述脑机接口研究中报告的研究、系统和参与者特征；（2）总结使用AAC-BCI系统的残疾参与者的沟通任务表现；（3）探索残疾参与者与非残疾参与者在性能上的差异。于2018年5月和2021年3月检索电子数据库，共识别出6065条记录，其中73条符合纳入标准。非实验性研究设计较为常见，样本量通常较小，约一半的研究涉及五名或更少的残疾参与者。参与者特征以及这些特征的报告方式存在相当大的差异。超过60%的研究报告称，在至少一种测试条件下，残疾参与者的平均选择准确率≤70%。然而，一些研究排除了未达到特定系统性能标准的参与者，而其他研究未说明是否基于性能排除了任何参与者。29项研究纳入了残疾和非残疾参与者，但很少有研究报告对两组性能进行比较的统计分析。结果表明，AAC-BCI系统有望支持SSPI患者的沟通，但对某些个体仍然无效。报告结果指标缺乏标准使得难以综合各研究的数据。需要进一步研究以证明AAC-BCI系统对不同病因和严重程度的SSPI患者的疗效，并且这些个体应纳入系统设计和测试中。术语的一致性以及参与者、方案和性能描述的一致性将有助于探索对AAC-BCI使用产生积极或消极影响的用户和系统特征，并支持使该技术对更广泛人群更有用的创新。
https://www.crd.york.ac.uk/prospero/display_record.php?ID=CRD42018095345，PROSPERO：CRD42018095345。
