EEG Recording and Online Signal Processing on Android: A Multiapp Framework for Brain-Computer Interfaces on Smartphone.

EEG Recording and Online Signal Processing on Android: A Multiapp Framework for Brain-Computer Interfaces on Smartphone.
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DOI:
10.1155/2017/3072870
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发表时间:
2017
影响因子:
--
通讯作者:
Bleichner MG
Bleichner MG
中科院分区:
生物学3区
文献类型:
--
作者:
Blum S;Debener S;Emkes R;Volkening N;Fudickar S;Bleichner MG

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我们的目标是开发和验证一个模块化的信号处理和分类应用程序,在现成的移动的Android设备上实现在线脑电图(EEG)信号处理。软件应用SCALA(Android上的信号处理和分类)支持标准化通信接口,可与外部软件和硬件交换信息。 为了在智能手机上实现闭环脑机接口(BCI),我们使用了多应用程序框架,该框架集成了用于刺激呈现、数据采集、数据处理、分类和向用户提供反馈的应用程序。 我们已经实现了开源的信号处理应用程序SCALA。我们目前的时间测试结果支持足够的时间精度的音频事件。我们还验证了SCALA与一个完善的听觉选择性注意范式,并报告以上的机会水平分类结果的所有参与者。关于24通道EEG信号质量,评估结果证实了典型的声音发作听觉诱发电位以及区分正确和不正确任务执行反馈的认知事件相关电位。 我们提出了一个完全智能手机操作的模块化闭环BCI系统,可以与不同的EEG放大器相结合,可以很容易地实现其他范例。
Our aim was the development and validation of a modular signal processing and classification application enabling online electroencephalography (EEG) signal processing on off-the-shelf mobile Android devices. The software application SCALA (Signal ProCessing and CLassification on Android) supports a standardized communication interface to exchange information with external software and hardware. In order to implement a closed-loop brain-computer interface (BCI) on the smartphone, we used a multiapp framework, which integrates applications for stimulus presentation, data acquisition, data processing, classification, and delivery of feedback to the user. We have implemented the open source signal processing application SCALA. We present timing test results supporting sufficient temporal precision of audio events. We also validate SCALA with a well-established auditory selective attention paradigm and report above chance level classification results for all participants. Regarding the 24-channel EEG signal quality, evaluation results confirm typical sound onset auditory evoked potentials as well as cognitive event-related potentials that differentiate between correct and incorrect task performance feedback. We present a fully smartphone-operated, modular closed-loop BCI system that can be combined with different EEG amplifiers and can easily implement other paradigms.
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