Have We Met Before? Using Consumer-Grade Brain-Computer Interfaces to Detect Unaware Facial Recognition.

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    • Abstract:
      Much research has been done on the brain's reaction to seeing faces, but while much of the work has investigated the brain's conscious reaction to faces, far less work has been done exploring the brain's unaware reactions using consumer-grade devices. Built on previous work, we describe an experiment conducted using EEGs and consumer-grade Brain-Computer Interface (BCI) headsets to measure the brain's unaware reaction to seeing faces of three pre-defined recognition classes: no recognition, unaware recognition, and aware recognition. We pre-select images to be shown in each class and display the images in a two-day experiment where participants implicitly learn images tagged as "unaware recognition" for use in the second day. It was found that, outperforming previous works, unaware facial recognitions could be detected with fairly high accuracies using a method that combines multiple sensors from a BCI device and utilizing out-of-the-box classification methods. [ABSTRACT FROM AUTHOR]
    • Abstract:
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