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首页> 美国卫生研究院文献>Sensors (Basel Switzerland) >AttentivU: An EEG-Based Closed-Loop Biofeedback System for Real-Time Monitoring and Improvement of Engagement for Personalized Learning
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AttentivU: An EEG-Based Closed-Loop Biofeedback System for Real-Time Monitoring and Improvement of Engagement for Personalized Learning

机译：AttentivU：基于EEG的闭环生物反馈系统用于实时监控和改善个性化学习的参与度

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摘要

Information about a person’s engagement and attention might be a valuable asset in many settings including work situations, driving, and learning environments. To this end, we propose the first prototype of a device called AttentivU—a system that uses a wearable system which consists of two main components. Component 1 is represented by an EEG headband used to measure the engagement of a person in real-time. Component 2 is a scarf, which provides subtle, haptic feedback (vibrations) in real-time when the drop in engagement is detected. We tested AttentivU in two separate studies with 48 adults. The participants were engaged in a learning scenario of either watching three video lectures on different subjects or participating in a set of three face-to-face lectures with a professor. There were three conditions administrated during both studies: (1) biofeedback, meaning the scarf (component 2 of the system) was vibrating each time the EEG headband detected a drop in engagement; (2) random feedback, where the vibrations did not correlate or depend on the engagement level detected by the system, and (3) no feedback, when no vibrations were administered. The results show that the biofeedback condition redirected the engagement of the participants to the task at hand and improved their performance on comprehension tests.
机译：在很多情况下，包括工作环境，驾驶和学习环境，有关人的参与和注意力的信息可能是宝贵的资产。为此，我们提出了名为AttentivU的设备的第一个原型，该系统使用的可穿戴系统由两个主要组件组成。组件1由用于实时测量人员参与度的EEG头带表示。组件2是一条围巾，当检测到接合下降时，它会实时提供微妙的触觉反馈（振动）。我们在两项针对48位成人的独立研究中测试了AttentivU。参与者参与了一个学习场景，要么观看三个不同主题的视频讲座，要么与教授一起参加一组三个面对面的讲座。两项研究均涉及三种情况：（1）生物反馈，这意味着围巾（系统的组件2）每次在EEG头带检测到接触下降时都在振动。 （2）随机反馈，其中振动不相关或不依赖于系统检测到的接合程度；以及（3）没有振动时，没有反馈。结果表明，生物反馈条件将参与者的参与重定向到手头的任务，并提高了他们在理解测试中的表现。

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