RSVP Keyboard: An EEG Based Typing Interface.
RSVP Keyboard: An EEG Based Typing Interface.
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DOI：
10.1109/icassp.2012.6287966
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发表时间：
2012
期刊：
影响因子：
--
通讯作者：
Fried-Oken M
中科院分区：
文献类型：
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作者：
Orhan U;Hild KE 2nd;Erdogmus D;Roark B;Oken B;Fried-Oken M
人类需要沟通。沟通的愿望仍然是闭锁综合征（LIS）患者的主要问题之一。虽然许多使用各种生理信号的辅助和增强通信系统在商业上是可获得的，但是该需求没有得到令人满意的满足。脑接口，特别是那些利用事件相关电位（ERP）在脑电图（EEG）检测一个人的意图非侵入性，正在成为一个有前途的通信接口，以满足这一需求，现有的选项是不够的。现有的用于打字的大脑接口使用许多重复的视觉刺激，以便以速度为代价提高准确性。然而，速度也是至关重要的，是点对点通信的一个组成部分;没有及时传递的消息通常会失去其重要性。因此，我们利用快速串行视觉呈现（RSVP）结合语言模型，以协助在大脑打字过程中的字母选择，最终目标是开发一个系统，同时实现高精度和速度。本文介绍了RSVP键盘系统，正在开发中的初步结果。这些对健康受试者和锁定受试者的初步结果表明，RSVP键盘范式可能会出现单次或多次试验的准确字母选择。
Humans need communication. The desire to communicate remains one of the primary issues for people with locked-in syndrome (LIS). While many assistive and augmentative communication systems that use various physiological signals are available commercially, the need is not satisfactorily met. Brain interfaces, in particular, those that utilize event related potentials (ERP) in electroencephalography (EEG) to detect the intent of a person noninvasively, are emerging as a promising communication interface to meet this need where existing options are insufficient. Existing brain interfaces for typing use many repetitions of the visual stimuli in order to increase accuracy at the cost of speed. However, speed is also crucial and is an integral portion of peer-to-peer communication; a message that is not delivered timely often looses its importance. Consequently, we utilize rapid serial visual presentation (RSVP) in conjunction with language models in order to assist letter selection during the brain-typing process with the final goal of developing a system that achieves high accuracy and speed simultaneously. This paper presents initial results from the RSVP Keyboard system that is under development. These initial results on healthy and locked-in subjects show that single-trial or few-trial accurate letter selection may be possible with the RSVP Keyboard paradigm.