Fig. 9From: Enhancing biofeedback-driven self-guided virtual reality exposure therapy through arousal detection from multimodal data using machine learningFigure on the top-left show an emotive EPOC flex while the top-right is showing its 10–20 diagram. The bottom one shows a sample signal acquisition with its different electrodes. The red rectangular box is showing a window of 5 s from where data were collected with a 128-Hz sampling frequencyBack to article page