Fig. 11From: Enhancing biofeedback-driven self-guided virtual reality exposure therapy through arousal detection from multimodal data using machine learningHeart rate extraction from EEG data. We used electrodes FT9 and FT10 to determine our heart rate. We placed the probe across the neck. For the acquired raw signal first, we performed the baseline correction and then filtered the data. Afterwards, we calculated the bipolar difference to determine the heart rateBack to article page