“…The most common locations for these wearable devices include the wrist, head, torso, chest, ear, and arm; and they are equipped to measure an array of biophysiological variables. For instance, they can provide data on heart rate (Fuller et al, 2020), heart rate variability (HRV; Stangl & Riedl, 2022), body temperature, respiration rate (De Fazio et al, 2021), oxygen saturation in the blood (Chan et al, 2022), and electrodermal activity (Sagl et al, 2019). Also, modern mobile neuroimaging techniques, such as functional near-infrared spectroscopy (Sun et al, 2018), portable magnetic encephalogram caps (Boto et al, 2018), and mobile deep brain recording (Topalovic et al, 2020), allow to measure neural responses in daily life (Reichert et al, 2021).…”