The user-centered design as novel perspective for evaluating the usability of BCI-controlled applications.
The user-centered design as novel perspective for evaluating the usability of BCI-controlled applications.
复制标题
DOI：
10.1371/journal.pone.0112392
复制
发表时间：
2014
期刊：
影响因子：
3.7
通讯作者：
Mattia D
中科院分区：
文献类型：
--
作者：
Kübler A;Holz EM;Riccio A;Zickler C;Kaufmann T;Kleih SC;Staiger-Sälzer P;Desideri L;Hoogerwerf EJ;Mattia D
尽管用于控制应用程序的脑机接口（BCI）的研究已经得到了极大的扩展，但在将BCI应用于最终用户时，我们仍然面临着翻译差距。为了弥补这一差距，我们将以用户为中心的设计（UCD）应用于脑机接口的研发，这意味着从关注单一方面（如准确性和信息传输率（ITR））转向更全面的用户体验。UCD基于有效的评估过程在最终用户和开发人员之间实现迭代过程。在UCD框架内，设备的可用性可以根据其有效性、效率和满意度来定义。我们对这些方面进行了操作，以评估bci控制的应用程序。有效性等同于选择的准确性，效率等同于每单位时间传递的信息量和投入的努力（工作量）。满意度通过问卷调查和视觉模拟量表进行评估。这些指标已成功应用于几个bci控制的通信和娱乐应用程序，这些应用程序由严重运动障碍的最终用户进行评估。共涉及N = 19名终端用户的四项研究结果显示：有效性为中至高；ITR方面的效率从低到高，工作量从低到中等；根据用户与技术的匹配程度，用户对应用程序的满意度从中等到较高。本文提出的UCD框架内的评估指标被证明是一种适用的、信息丰富的方法，可以评估BCI控制的应用程序，严重受损和处于锁定状态的最终用户可以参与这一过程。
Albeit research on brain-computer interfaces (BCI) for controlling applications has expanded tremendously, we still face a translational gap when bringing BCI to end-users. To bridge this gap, we adapted the user-centered design (UCD) to BCI research and development which implies a shift from focusing on single aspects, such as accuracy and information transfer rate (ITR), to a more holistic user experience. The UCD implements an iterative process between end-users and developers based on a valid evaluation procedure. Within the UCD framework usability of a device can be defined with regard to its effectiveness, efficiency, and satisfaction. We operationalized these aspects to evaluate BCI-controlled applications. Effectiveness was regarded equivalent to accuracy of selections and efficiency to the amount of information transferred per time unit and the effort invested (workload). Satisfaction was assessed with questionnaires and visual-analogue scales. These metrics have been successfully applied to several BCI-controlled applications for communication and entertainment, which were evaluated by end-users with severe motor impairment. Results of four studies, involving a total of N = 19 end-users revealed: effectiveness was moderate to high; efficiency in terms of ITR was low to high and workload low to medium; depending on the match between user and technology, and type of application satisfaction was moderate to high. The here suggested evaluation metrics within the framework of the UCD proved to be an applicable and informative approach to evaluate BCI controlled applications, and end-users with severe impairment and in the locked-in state were able to participate in this process.
登录
查看更多内容
DOI：
10.1682/jrrd.1990.10.0425
发表时间：
1990-01-01
影响因子：
--
作者：
BATAVIA A I;HAMMER G S
通讯作者：
HAMMER G S
影响因子：
4.7
作者：
Kaufmann, Tobias;Schulz, Stefan M.;Kuebler, Andrea
通讯作者：
Kuebler, Andrea
影响因子：
1.8
作者：
Choi, Young Mi;Sprigle, Stephen H.
通讯作者：
Sprigle, Stephen H.
影响因子：
9.9
作者：
Kübler, A;Nijboer, F;Wolpaw, JR
通讯作者：
Wolpaw, JR
影响因子：
4.3
作者：
K端bler, A;Neumann, N;Birbaumer, NP
通讯作者：
Birbaumer, NP