“…Research groups have developed tools using various types of data modality, validated in numerous mental health populations, including depression [20], [21], anxiety disorder [22], schizophrenia [23], posttraumatic stress disorder (PTSD) [24], and almost all common psychiatric disorders. Diverse modalities of signals have been investigated, including behavioral signals, such as facial and body movements [20], [21], [25], speech acoustics [26]- [28], verbal or written content [29], sleep [30] and activity [24], [31] patterns, as well as physiological signals such as cardiovascular (heart rate [24], [32], electrocardiogram [28], [33], etc. ) and neural signals (electroencephalogram [34], [35], functional magnetic resonance imaging [36], [37] and functional near-infrared spectroscopy [38]).…”