Fig. 2: Sensors used by devices and features derived from sensor data for each type of device.
From: A systematic review of passive data for remote monitoring in psychosis and schizophrenia
The circular bar plots show the types of sensors used by each device group, with the bar representing the percentage of devices in each group using that sensor. The horizontal bar plots show the number of studies that used each feature, coloured by behaviour type (phone use, sleep, location/mobility, physiology, physical activity, and circadian rhythm). Figure a shows results for the smartphone device group, b for accelerometers, c for smartwatches & commercial fitness bands and d for other wearables. Findings for the pedometer device group are not shown. TST total sleep time, EDA electrodermal activity, ECG electrocardiogram.
