An observational study in Healthy Volunteers, sponsored by Brigham and Women's Hospital. Completed at 1 site in United States. Open to participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2018-07-11.
Sponsored by Brigham and Women's Hospital · Observational
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.
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.
Brigham and Women's Hospital is the lead sponsor of 1,236 studies on the registry; 224 are open to participants now.
Of its 116 completed or terminated interventional studies of FDA-regulated products, 64 (55%) have results posted.
Counted across the registry records on this site, refreshed daily.
College undergraduates
Exclusion Criteria:
College students will be monitored and will complete online surveys, install apps on their mobile phones, wear physiological sensors and provide saliva samples for later assay.
Other: No intervention. Observation only
No intervention. Observation only
Timing of sleep and wake
Timing of self-reported sleep onset and wake onset
Time frame: Approximately one month
Timing of phone use (e.g., mobile phone calls, text messages, applications and internet use)
Timing of phone use (e.g, mobile phone calls, text messages, applications and internet use)
Time frame: Approximately one month
Mood
Self-reported mood using a linear non-numeric scale
Time frame: Approximately one month
Activity levels
Activity levels collected every minute using a wrist-worn device
Time frame: approximately one month
Light exposure levels
Light exposure levels collected every minute using a wrist-worn device
Time frame: approximately one month
Food choice
Content of food
Time frame: approximately one month
Circadian phase
Calculated time of melatonin phase as a marker of circadian rhythms
Time frame: one day
Electrodermal activity
Electrodermal activity as measured using a wrist-worn device
Time frame: approximately one month
Timing of meals
Time meals are eaten
Time frame: approximately one month
Plan to share: Undecided
This study is completed, as verified in Jul 2018. You cannot join it, but the record below documents what was studied.
Get an email when the registry record changes — status, dates, results — or when someone posts here.
Sign in to followQuestions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.
Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.
Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.
Brigham and Women's Hospital