Multi-scale Modeling of Sleep Behaviors in Social Networks
Trial Snapshot
- Phase
- Not Applicable
- Status
- Completed
- Sponsor
- Brigham and Women's Hospital
- Enrollment
- 729
- Locations
- 1
- Primary Endpoint
- Timing of sleep and wake
Study Overview
Brief Summary
The project is designed to document in college undergraduates the relationships among sleep/wake timing and duration, use of mobile phones and other electronic devices, food timing and content, self-reported mood and physiological measures.
Detailed Description
College undergraduates are studied in cohorts of ~ 50 in fall or spring semesters. They complete diaries once in the morning and once in the evening about sleep/wake timing, timing of social and school activities, and mood. They wear physiological sensors. They install (1) an application on their mobile phone that tracks timing, duration and de-identified sender/recipient of phone calls and text messages, use of internet or apps (but not the content or names of those internet sites and apps) and (2) meal content and timing. They also spend at least one overnight session providing saliva samples for later assay for hormones.
Study Design
- Study Type
- Observational
- Observational Model
- Cohort
- Time Perspective
- Prospective
Eligibility Criteria
- Ages
- 18 Years to — (Adult, Older Adult)
- Sex
- All
- Accepts Healthy Volunteers
- Yes
Inclusion Criteria
- •undergraduate at institution at which we have permission to perform study
- •owning a mobile device on which the phone app can be installed
- •ability to wear the wrist-worn sensors
Exclusion Criteria
- •no travel outside one time zone starting approximately 2 weeks before monitoring begins through end of approximately one month of monitoring.
- •participation in a prior group studied
Outcomes
Primary Outcomes
Timing of sleep and wake
Time Frame: Approximately one month
Timing of self-reported sleep onset and wake onset
Timing of phone use (e.g., mobile phone calls, text messages, applications and internet use)
Time Frame: Approximately one month
Timing of phone use (e.g, mobile phone calls, text messages, applications and internet use)
Secondary Outcomes
- Light exposure levels(approximately one month)
- Mood(Approximately one month)
- Activity levels(approximately one month)
- Circadian phase(one day)
- Food choice(approximately one month)
- Electrodermal activity(approximately one month)
- Timing of meals(approximately one month)
Investigators
Elizabeth B. Klerman
Associate Professor
Brigham and Women's Hospital