Fig. 1. MAVE® device and Neurofeedback protocol using MAVE® device and mobile application. (A) MAVE® device consists of a headband with 2 channels of EEG sensor and one channel of PPG sensor. (B) A 2-min resting EEG measurement was performed prior to meditation to determine baseline EEG. The relative power of the target frequency bands (alpha, theta, and high beta bands) was determined. Based on the baseline value, it was set to reach the threshold when all formulas were simultaneously satisfied in the alpha, theta, and high beta bands.
EEG = electroencephalography, PPG = photoplethysmography.