Rapidly accumulating data from mobile assessments are facilitating our ability to track
patterns of emotions, behaviors, biologic rhythms, and their contextual influences in real …

Importance Biologic systems involved in the regulation of motor activity are intricately linked
with other homeostatic systems such as sleep, feeding behavior, energy, and mood. Mobile …

Objective Sleep disturbances are prevalent, persistent, and impairing features of bipolar
disorder. However, the near-term and cumulative impact of the severity and variability of …

Background Disruptions in rest and activity patterns are core features of bipolar disorder
(BD). However, previous methods have been limited in fully characterizing the patterns …

Disruptions in activity are core features of mood states in bipolar disorder (BD). In this study,
we sought to identify activity patterns that discriminate between mood states in BD …

Dynamic psychological processes are most often assessed using self-report instruments.
This places a constraint on how often and for how long data can be collected due to the …

The cyclical nature of periodic switches in energy, motor activation and sleep-wake cycles in
bipolar disorder suggests a strong underlying relationship with disturbances in …

There has been a growing number of studies that have employed actigraphy to investigate
differences in motor activity in mood disorders. In general, these studies have shown that …

Background Predictive models for mental disorders or behaviors (eg, suicide) have been
successfully developed at the level of populations, yet current demographic and clinical …

BackgroundMobile technology enables high frequency mood monitoring and automated
passive collection of data (eg actigraphy) from patients more efficiently and less intrusively …