A brain computer interfaces (BCIs) can provide a new communication channel and control functions to people with restricted movements. Recent studies have indicated the effectiveness of BCI applications. Various types of applications have been introduced so far in this field, but the number of those available to the public is still insufficient. Thus, there is a need to expand the usability and accessibility of BCI applications. In this study, we introduce a BCI application for users to experience a virtual world tour. This software was built on three open source environments and is publicly available through the GitHub repository. For a usability test, 10 healthy subjects participated in an electroencephalography (EEG) experiment and evaluated the system through a questionnaire. As a result, all participants successfully played the BCI application with 96.6% accuracy with 20 blinks from two sessions and gave opinions on its usability (e.g., controllability, completeness, comfort, and enjoyment) through the questionnaire. We believe that this open-source BCI world tour system can be used in both research and entertainment settings and hopefully contribute to open science in BCI field.

中文翻译：

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基于开源BCI的虚拟世界巡回赛应用及其可用性评估

脑机接口（BCI）可以为行动受限的人提供新的通信渠道和控制功能。最近的研究表明了 BCI 应用的有效性。迄今为止，该领域已经推出了各种类型的应用程序，但可供公众使用的应用程序数量仍然不足。因此，需要扩展 BCI 应用程序的可用性和可访问性。在本研究中，我们介绍了一个 BCI 应用程序，供用户体验虚拟世界之旅。该软件构建在三个开源环境上，并通过 GitHub 存储库公开提供。在可用性测试中，10 名健康受试者参与了脑电图 (EEG) 实验，并通过问卷对系统进行了评估。结果，所有参与者在两次会话中眨眼 20 次，以 96.6% 的准确率成功玩了 BCI 应用程序，并通过问卷对其可用性（例如，可控性、完整性、舒适性和享受性）给出了意见。我们相信这个开源的 BCI 世界巡回系统可以用于研究和娱乐环境，并希望为 BCI 领域的开放科学做出贡献。