Aim Symptoms of bipolar disorder (BD) include changes in mood, activity, energy, sleep,
and appetite. Since many of these processes are regulated by circadian function, circadian …

This article presents a review of signals used for measuring physiology and activity during
sleep and techniques for extracting information from these signals. We examine both clinical …

Importance Increased activity and energy alongside mood change are identified in theDSM-
5as cardinal symptoms of mania and hypomania. A wide range of existing research …

Introduction Bipolar disorder is an often disabling mental illness with a lifetime prevalence of
1%–2%, a high risk of recurrence of manic and depressive episodes, a lifelong elevated risk …

Sleep disruptions represent a core feature of bipolar disorders and have been widely
studied through the use of actigraphy, which is an objective measure of motor activity and …

Background Interest in biological clock pathways in bipolar disorders (BD) continues to
grow, but there has yet to be an audit of circadian measurement tools for use in BD research …

Sleep and circadian rhythms disturbances (SCRD) in young people at high risk or with early
onset of bipolar disorders (BD) are poorly understood. We systematically searched for …

Background Distinguishing pediatric bipolar disorder (BD) from attention‐deficit hyperactivity
disorder (ADHD) can be challenging. Hyperactivity is a core feature of both disorders, but …

Background Bias-prone psychiatric interviews remain the mainstay of bipolar disorder (BD)
assessment. The development of digital phenotyping promises to improve BD management …

Background Epidemiological data have demonstrated seasonal and circadian patterns of
suicidal deaths. Several reviews and meta-analyses have confirmed the relationship …