Background Wearable devices hold great promise, particularly for data generation for cutting-
edge health research, and their demand has risen substantially in recent years. However …

Recently, there has been an increase in the production of devices to monitor mental health
and stress as means for expediting detection, and subsequent management of these …

As interest in and use of telehealth during the COVID-19 global pandemic increase, the
potential of digital health to increase access and quality of mental health is becoming clear …

Background In the absence of a vaccine or effective treatment for COVID-19, countries have
adopted nonpharmaceutical interventions (NPIs) such as social distancing and full …

Background Actigraphy may provide a more valid assessment of sleep, circadian rhythm
(CR), and physical activity (PA) than self‐reported questionnaires, but has not been used …

Photoplethysmography is a key sensing technology which is used in wearable devices such
as smartwatches and fitness trackers. Currently, photoplethysmography sensors are used to …

Abstract Background Major Depressive Disorder (MDD) is prevalent, often chronic, and
requires ongoing monitoring of symptoms to track response to treatment and identify early …

Background Sleep problems tend to vary according to the course of the disorder in
individuals with mental health problems. Research in mental health has associated sleep …

Background There is a notable a gap between promising research findings and
implementation of digital health tools. Understanding and addressing barriers to use is key …

Background Speech contains neuromuscular, physiological and cognitive components, and
so is a potential biomarker of mental disorders. Previous studies indicate that speaking rate …