Feasibility and practical considerations of using steady-state-visual evoked potential to control an augmented virtual reality environment

交流是日常生活中必不可少的一部分。然而，许多人患有疾病和缺陷，使他们无法与他人直接沟通。对于这些人来说，经常需要一个训练有素的专业人员不断地帮助他们，这使得他们不可能独立生活。这也给他们的家庭带来了沉重的经济和心理负担。在之前的ENGAGE基金的支持下，Cognixion和蒋博士领导的华盛顿大学团队共同努力开发一个平台，允许用户在最先进的非侵入性脑机接口（bci）和智能手机技术的帮助下进行非语言交流。具体来说，我们将实施不同的视觉刺激，这些刺激可以引发具有不同模式的大脑信号。这些模式将用于解码**用户的意图。将研究不同的刺激参数，如不同的闪烁频率、颜色和大小。所有的实现都将基于Cognixion现有的基于UNITY和iOS**环境的AR平台，因此它最有效地转化为Cognixion的下一代产品。我们还将了解在Cognixion客户所处的不同现实环境中，这种BCI系统的有效性（即算法识别的刺激数量）是如何变化的。

Communication is an essential part of everyday living. However, many people suffer from conditions and**deficits that render them unable to communicate directly with others. For these individuals, a trained**professional is often required to assist them continuously, which makes it impossible for them to live**independently. It also places a heavy financial and psychological burden on their families. Supported by the**previous ENGAGE grant, Cognixion and the UW team led by Dr. Jiang have worked together in the effort to**develop a platform that allows users to communicate non-verbally with the aid of state-of-the-art non-invasive**brain-computer interfaces (BCIs) and smartphone technologies. Specifically, we will implement different**visual stimuli that can elicit brain signals with distinctive patterns. These patterns will be used to decode the**user's intention. Different stimulus parameters such as different flashing frequencies, color, and size will be**investigated. All implementation will be based on Cognixion's existing AR platform based on UNITY and iOS**environment, so it is most efficient to translate into Cognixion's next-generation product. We will also how the**effectiveness (i.e. the number of stimuli recognized by the algorithm) of such a BCI system changes in different**real-world environments that Cognixion's customer would be in.