A5060889402- Sleep and related disorders
- Circadian rhythm and melatonin
- Children's Physical and Motor Development
- Sleep and Wakefulness Research
- Infant Development and Preterm Care
- Mobile Health and mHealth Applications
- Child Development and Digital Technology
- Child Nutrition and Water Access
- Impact of Technology on Adolescents
Monash University
2021-2024
Abstract Study Objectives Light is the main time cue for human circadian system. Sleep and light are intrinsically linked; exposure patterns can influence sleep patterns. However, metrics quantifying regularity lacking, relationship between underexplored. We developed new demonstrated their utility in adolescents, across school term vacation. Methods Daily sleep/wake were measured using wrist actigraphy 75 adolescents (54% male, 17.17 ± 0.83 years) over 2 weeks of a subsequent 2-week The...
During the COVID-19 pandemic, schools around world rapidly transitioned from in-person to remote learning, providing an opportunity examine impact of vs learning on sleep, circadian timing, and mood. We assessed sleep-wake timing using wrist actigraphy sleep diaries over 1-2 weeks during (n = 28) 58, where n 27 were repeat assessments) in adolescents (age M ± SD 12.79 0.42 years). Circadian was measured under a single condition each individual salivary melatonin (Dim Light Melatonin Onset;...
During adolescence, sleep and circadian timing shift later, contributing to restricted duration irregular sleep-wake patterns. The association of these developmental changes in with cognitive functioning, consequently academic outcomes, has not been examined prospectively. role ambient light exposure is also well understood. Here, we describe the protocol for Circadian Light Adolescence, Sleep School (CLASS) Study that will use a longitudinal design examine associations timing, performance...
Abstract Introduction Adolescents often report insufficient sleep and poor quality, potentially due to busy schedules with academic tasks, sports, extracurricular activities. This study investigated the impact of these activities on onset, wake time duration in early adolescents. Methods Participants were 167 secondary school students Melbourne, Australia (Mean age = 12.81±0.41 years, 56% female). During term, participants reported sleep-wake patterns over 2 weeks (sleep diaries). They also...
Abstract During the COVID-19 pandemic, schools rapidly transitioned from in-person to remote learning. We examined sleep- and mood-related changes in early adolescents, before after this transition assess impact of vs. Sleep-wake timing was measured using wrist-actigraphy sleep diaries over 1–2 weeks Year 7 students (age M±SD =12.79±0.42 years) during learning (n=28) (n=58; n=27 were studied both conditions). Circadian under a single condition each individual salivary melatonin (Dim Light...
Abstract Background Circadian phase and sleep-wake timing delays are hallmark adolescent development features. These contribute to shorter sleep duration in combination with early school schedules. Both delayed circadian insufficient associated increased prevalence/severity of mood problems. This study examined associations between phase, duration, adolescence. Methods 157 Year 7 Australian students (M±SD=12.81±0.40 years, 56.7% female) wore actiwatches completed diaries for two weeks term....
Abstract High-level cognitive function is essential for academic performance in adolescents. While obtaining sufficient sleep duration has been shown to support less known about the role of regularity function. We investigated how relates self-report 179 Year 7 students (M±SD=12.81±0.41 years, 56% females) Australia. Sleep/wake timing was measured via wrist actigraphy and daily diaries over two-school-weeks. Sleep using Regularity Index (SRI) calculated (SRI range = 58-95). Self-report...
Abstract Using light-emitting devices before bed is a modifiable behaviour that may affect adolescent sleep. We investigated the daily associations between device use and sleep-wake timing, duration, quality in early adolescence. Participants were 168 Year 7 students (M±SD=12.82±0.42 years, 56% females) Australia. Sleep-wake sleep quality, hour (device type media content) measured using diaries for two weeks during school term. Linear mixed models used to examine association outcomes. Nearly...
Abstract Study Objectives Light is the main time cue for human circadian system. Irregular sleep/wake patterns are associated with poor health outcomes, which could be mediated by irregular of light exposure. The relationship between sleep and regularity has not been directly explored. We investigated in adolescents, across school-term vacation, using novel metrics measuring regularity. Methods Daily were measured via wrist actigraphy 104 adolescents (54% male, age M±SD = 17.17±0.80 years)...