Many adolescents go to bed late and wake up early for school. Science is only beginning to understand how sleep schedules can affect them. The investigators are interested in whether changing adolescents' sleep patterns affects their functioning, attention, and how they feel. The investigators are especially interested in the effects of changing both how much sleep adolescents get and when that sleep happens. This study focuses on healthy 13-17-year-olds with ADHD. This study asks adolescents to systematically change their sleeping habits across a 3 week span. The first week, they follow a sleep schedule that fits reasonably well with the schedule they keep when they do not have to wake up early for any specific obligation (e.g., for school). The second week, they spend several nights in a "short sleep" condition, during which they get 6.5 hours in bed per night. The final week, they enter a sleep condition that allows for healthy sleep duration, but with a timing that is randomly assigned to either fit well with their preferred schedule or fit poorly with that schedule. During each week, they and their parents complete measures of their attention and other factors. At the end of each week, they attend an evening session to measure their internal body clock ("circadian phase"), as well as measures of attention and other thinking skills. The goal is to understand whether the benefits of healthy sleep duration depend on the timing of when that sleep occurs.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
BASIC_SCIENCE
Masking
NONE
Enrollment
50
Timing of extended sleep condition is randomly assigned to fit with participant's chronotype
Timing of extended sleep condition is randomly assigned to fit poorly with participant's chronotype
Cincinnati Children's Hospital Medical Center
Cincinnati, Ohio, United States
RECRUITINGCaregiver- and Adolescent-Reported Symptoms of Inattention
Daily diary listing symptoms of inattention adapted from the IOWA Conners Questionnaire. Adolescents will self-report their own symptoms for the previous day. Parents/caregivers will report on their observations of the adolescents' symptoms for the previous day. Higher scores indicate greater inattention.
Time frame: Daily throughout each participant's involvement in the study, up to 3 weeks
Caregiver- and Adolescent-Reported Internalizing Symptoms (depression, anxiety)
Retrospective report of internalizing symptoms based on the Vanderbilt questionnaire across 5 days the previous week. Adolescents will self-report their own symptoms. Parents/caregivers will report on their observations of the adolescents' symptoms. Higher scores indicate greater internalizing symptoms.
Time frame: Each office visit during the participant's involvement. Office visits are spaced 1 week apart, for up to three visits.
Caregiver- and Adolescent-Reported Emotional Dysregulation
Retrospective report of symptoms of Emotion Dysregulation (e.g., emotional responses stronger than is called for by a situation) across 5 days the previous week. Previously validated by the investigators against established measures of long-term emotion regulation, this form focuses on a shorter (5-day) period. Adolescents will self-report their own symptoms. Parents/caregivers will report on their observations of the adolescents' symptoms. Higher scores indicate greater dysregulation.
Time frame: Each office visit during the participant's involvement. Office visits are spaced 1 week apart, for up to three visits.
Caregiver- and Adolescent-Reported Impulsivity
Retrospective report of internalizing symptoms based on the Vanderbilt questionnaire across 5 days the previous week. Adolescents will self-report their own symptoms. Parents/caregivers will report on their observations of the adolescents' symptoms. Higher scores indicate greater internalizing symptoms.
Time frame: Each office visit during the participant's involvement. Office visits are spaced 1 week apart, for up to three visits.
Sleep Period Duration
Nightly sleep period, defined as the simple difference between sleep onset and offset, based on a wrist-mounted accelerometer (wristwatch).
Time frame: Nightly throughout study participation (around 3 weeks)
Inattention
Adolescent-reported attention will me assessed via Ecological Momentary Assessment (EMA)
Time frame: Twice daily during weeks 2 and 3 of study participation.
Inattention, as objectively measured via the NASA PVT+ application (aka Psychomotor Vigilance Test).
Remote-proctored administration via the NASA PVT+, loaded onto an iPhone. This is a computerized measure of sustained attention. Participants must attend to infrequent stimuli on screen as quickly as possible. Higher scores indicate slower or missed responses, and therefore greater inattention.
Time frame: Four remote administrations: (1) the morning of a predetermined date during Week 2 of study participation; (2) the afternoon of that same Week 2 date; (3) the morning of a predetermined date during Week 3; (4) the afternoon of that same Week 3 date.
Stephen Becker, Ph.D.
CONTACT
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