Publications

2025

Koa, T.B., Ong, J.L., & Lo, J.C. (2025) Changes in sleep architecture during recurrent cycles of sleep restriction: a comparison between stable and variable short sleep schedules, SLEEP Advances, zpaf016. [Link]

2024

Koa, T. B., Gooley, J. J., Chee, M. W., & Lo, J. C. (2024). Neurobehavioral functions during recurrent periods of sleep restriction: Effects of intra-individual variability in sleep duration. SLEEP, 47(3), zsae010. [Link]

2023

Koa, T. B., Seah, J. X., Ong, J. Q., & Lo, J. C. (2023). Short sleep duration in school-age children: Differential factors on weekdays and weekends. Behavioral Sleep Medicine, 1–13. [Full Text]

2022

Lo, J. C.-Y., Koa, T. B., Ong, J. L., Gooley, J. J., & Chee, M. W. (2022). Staying vigilant during recurrent sleep restriction: Dose-response effects of time-in-bed and benefits of daytime napping. Sleep, 45(4). [Link]
Wong, K. F., Perini, F., Lin, J., Goldstein, M., Ong, J. L., Lo, J., Ong, J. C., Doshi, K., & Lim, J. (2022). Dissociable changes in sleep architecture with mindfulness and sleep hygiene intervention in older adults: Secondary and exploratory analysis of polysomnography data from the mindfulness sleep therapy (mist) trial. Sleep Health, 8(4), 364–372. [Link]
Lo, J. C., Ang, J. W., Koa, T. B., Ong, J. L., & Lim, J. (2022). Predicting vigilance vulnerability during 1 and 2 weeks of sleep restriction with Baseline Performance Metrics. SLEEP Advances, 3(1). [Link]

2021

Leong, R. L. F., Lo, J. C., & Chee, M. W. L. (2021). Sleep-dependent prospective memory consolidation is impaired with aging. Sleep, 44(9). [Link]
Ong, J. L., Jamaluddin, S. A., Tandi, J., Chee, N. I. Y. N., Leong, R. L. F., Huber, R., Lo, J. C., & Chee, M. W. L. (2021). Cortical thinning and sleep slow wave activity reductions mediate age-related improvements in cognition during mid-late adolescence. Sleep, 45(1). [Link]

2020

Koa, T. B., & Lo, J. C. (2020). Neurobehavioural functions during variable and stable short sleep schedules. Journal of Sleep Research, 30(4). [Full Text]
Lo, J. C., & Chee, M. W. L. (2020). Cognitive effects of multi-night adolescent sleep restriction: Current data and future possibilities. Current Opinion in Behavioral Sciences, 33, 34–41. [Full text]
van Rijn, E., Koh, S. Y. J., Ng, A. S. C., Vinogradova, K., Chee, N. I. Y. N., Lee, S. M., Lo, J. C., Gooley, J. J., & Chee, M. W. L. (2020). Evaluation of an interactive school-based Sleep Education Program: A cluster-randomized controlled trial. Sleep Health, 6(2), 137–144. [Link]
Lo, J. C., Leong, R. L. F., Ng, A. S. C., Jamaluddin, S. A., Ong, J. L., Ghorbani, S., Lau, T., Chee, N. I. Y. N., Gooley, J. J., & Chee, M. W. L. (2020). Cognitive effects of split and continuous sleep schedules in adolescents differ according to total sleep opportunity. Sleep, 43(12). [Link]
Yeo, S. C., Tan, J., Lo, J. C., Chee, M. W., & Gooley, J. J. (2020). Associations of time spent on homework or studying with nocturnal sleep behavior and depression symptoms in adolescents from Singapore. Sleep Health, 6(6), 758–766. [Link]

2019

Hassirim, Z., Lim, E. C., Lo, J. C., & Lim, J. (2019). Pre-sleep cognitive arousal decreases following a 4-week introductory mindfulness course. Mindfulness, 10(11), 2429–2438. [Link]
Leong, R. L., Cheng, G. H., Chee, M. W. & Lo, J. C. (2019). The effects of sleep on prospective memory: a systematic review and meta-analysis. Sleep Medicine Reviews. [Link]
Lee, X. K., Chee, N. I. Y. N., Ong, J. L., Teo, T. B., van Rijn, E., Lo, J. C., & Chee, M. W. L. (2019). Validation of a consumer sleep wearable device with actigraphy and polysomnography in adolescents across sleep opportunity manipulations. Journal of Clinical Sleep Medicine, 15(09), 1337–1346. [Link]
Chong, J. S. X., Ng, K. K., Tandi, J., Wang, C., Poh, J., Lo J. C., Chee, M. W. L., & Zhou, J. (2019). Longitudinal changes in the cerebral cortex functional organization of healthy elderly. Journal of Neuroscience, 39(28), 5534-5550. [Link]
Yeo, S. C., Jos, A. M., Erwin, C., Lee, S. M., Lee, X. K., Lo J. C., Chee, M. W. L., & Gooley, J. J. (2019). Associations of sleep duration on school nights with self-rated health, overweight, and depression symptoms in adolescents: problems and possible solutions. Sleep Medicine, 60, 96-108. [Full text]
Lo, J. C., Twan, D. C. K., Karamchedu, S., Ong, J. L., van Rijn, E., Lee, X. K., Gooley, J. J., & Chee, M. W. (2019). Differential effects of split and continuous sleep on vigilance and glucose tolerance in sleep-restricted adolescents: a randomized trial. Sleep, 42(5), zsz037. [Link]
Leong, R.L., van Rijn, E., Koh S.Y., Chee, M. W., & Lo, J. C. (2019). Sleep improves memory for the content but not execution of intentions in adolescents. Sleep Medicine, 56, 111-116. [Full text]
Leong, R. L., Koh, S. Y., Chee, M. W., & Lo, J. C. (2019). Slow wave sleep facilitates spontaneous retrieval in prospective memory, Sleep, 42 (4), zsz003. doi.org/10.1093/sleep/zsz003. [Link]
Ong, J. L., Tandi, J., Patanaik, A., Lo, J. C., & Chee, M. W. L. (2019). Large-scale sleep data from wearables reveal regional disparities in sleep patterns that persist across age and gender. Scientific Reports, 9, 3415. [Link]
Ong, J. L., Lo, J. C., Patanaik, A., & Chee, M. W. L. (2019). Trait‐like characteristics of sleep EEG power spectra in adolescents across sleep opportunity manipulations. Journal of Sleep Research, 28(5). [Link]

2018

Cheng, G. H. L., Malhotra, R., Østbye, T., Chan, A., Ma, S., & Lo, J. C. (2018). Changes in Nocturnal Sleep and Daytime nap Durations Predict all-cause Mortality among Older Adults: The Panel on Health and Ageing of Singaporean Elderly. Sleep, zsy087-zsy087. doi:10.1093/sleep/zsy087. [Link]
Cheng, G. H., Malhotra, R., Chan, A., Østbye, T., & Lo, J. C. (2018). Weak social networks and restless sleep interrelate through depressed mood among elderly. Quality of Life Research, 27(10), 2517-2524. [Full text]
Ng, K. K., Qiu, Y., Lo, J. C., Koay, E. S., Koh, W. P., Chee, M. W. L., & Zhou, J. (2018). Functional segregation loss over time is moderated by APOE genotype in healthy elderly. Human Brain Mapping, 39(7), 2742-2752. [Full text]
Lo, J. C., Lee, S. M., Lee, X. K., Sasmita, K., Chee, N. I. Y. N., Tandi, J.,Cher, W. S., Gooley, J. J., Chee., M. W. L. (2018). Sustained benefits of delaying school start time on adolescent sleep and well-being. Sleep, zsy052-zsy052. doi: 10.1093/sleep/zsy052. [Link]
Leong, R. L., Koh, S. Y., Tandi, J., Chee, M. W., Lo, J. C. (2018). Multiple nights of partial sleep deprivation do not affect prospective remembering at long delays. Sleep Medicine, 44, 19-23. [Full text]
Cheng, G. H., Chan, A., & Lo, J. C. (2018). Importance of social relationships in the association between sleep duration and cognitive function: Data from community-dwelling older Singaporeans. International Psychogeriatrics, 30(6), 893-901. [Full text]

2017

Cheng G. H. L., Chan A., Lo J. C. (2017). Factors of nocturnal sleep and daytime nap durations in community-dwelling elderly: a longitudinal population-based study. International Psychogeriatrics, 29(8), 1335-1344. [Full text]
Ong, J. L., Lo, J. C., Gooley, J. J., & Chee, M. W. (2017). EEG changes accompanying successive cycles of sleep restriction with and without naps in adolescents. Sleep, 40(4), zsx030. [Link]
Lim, J., Lo, J. C., & Chee, M. W. (2017). Assessing the benefits of napping and short rest breaks on processing speed in sleep-restricted adolescents. Journal of Sleep Research, 26, 219-226. [Link]
Lo, J. C., Lee, S. M., Teo, L. M., Lim, J., Gooley, J. J., Chee., M. W. L. (2017). Neurobehavioral Impact of Successive Cycles of Sleep Restriction With and Without Naps in Adolescents. Sleep, 40 (2): zsw042. doi: 10.1093/sleep/zsw042. [Link]
Leong, R. L., Lo, J. C., Sim, S. K. Y., Zheng, H., Tandi, J., Zhou, J., & Chee, M. W. (2017). Longitudinal brain structure and cognitive changes over 8 years in an East Asian cohort. Neuroimage, 147, 852-860. [Link]

2016

Lo, J. C., Chong, P. L., Ganesan, S., Leong, R. L., & Chee, M. W. (2016). Sleep deprivation increases formation of false memory: the Need for Sleep Study. Journal of Sleep Research, epub. [Link]
Lo, J. C., Bennion, K., & Chee, M. W. (2016). Sleep restriction can attenuate prioritisation benefits on declarative memory consolidation. Journal of Sleep Research, epub. [Link]
Huang, S., Deshpande, A., Yeo, S.-C., Lo, J. C., Chee, M. W., & Gooley, J. J. (2016). Sleep restriction impairs vocabulary learning when adolescents cram for exams: The Need for Sleep Study. Sleep, 39(9), 1681-1690. [Link]
Ng, K. K., Lo, J. C., Lim, J. K. W., Chee, M. W. L., & Zhou, J. (2016). Reduced functional segregation between the default mode network and the executive control network in healthy older adults: a longitudinal study. Neuroimage, 133, 321–330. [Full text]
Ong, J. L., Lo, J. C., Gooley, J. J., & Chee, M. W. (2016). EEG changes across nights of sleep restriction and recovery in adolescents: the Need for Sleep Study. Sleep, 39(6), 1233-1240. [Link]
Santhi, N., Lazar, A. S., McCabe, P., Lo, J. C., Groeger, J. A., & Dijk, D.-J. (2016). Sex differences in the circadian regulation of sleep and waking cognition in humans. Proceedings of the National Academy of Sciences of the United States of America, 113(19), E2730-E2739. [Full text]
Ong, J. L., Lo, J. C., Chee, N. I., Santostasi, G., Paller, K. A., Zee, P. C., & Chee, M. W. (2016). Effects of phase locked acoustic stimulation during a nap on EEG spectra and declarative memory consolidation. Sleep Medicine, 20(4), 88-97. [Full text]
Lo, J. C., Ong, J. L., Leong, R. L., Gooley, J. J., & Chee, M. W. (2016). Cognitive performance, sleepiness, and mood in partially sleep deprived adolescents: The Need for Sleep Study. Sleep, 39(3), 687-698. [Link]
Lo, J. C., Groeger, J. A., Cheng, G. H., Dijk, D.-J., & Chee, M. W. (2016). Self-reported sleep duration and cognitive performance in older adults: A systematic review and meta-analysis. Sleep Medicine, 17(1), 87-98. [Link]

2015

Hong, Z., Ng, K. K., Sim, S. K. Y., Ngeow, M. Y., Zheng, H., Lo, J. C., Chee., M. W. L., & Zhou, H. (2015). Differential age-dependent associations of grey matter volume and white matter integrity with processing speed in healthy older adults. Neuroimage, 123, 42-50. [Full text]

2014

Lo, J. C., Dijk, D.-J., & Groeger, J. A. (2014). Comparing the effects of nocturnal sleep and daytime napping on declarative memory consolidation. PLoS One, 9(9), e108100. [Link]
Lo, J. C., Loh, K. K., Zheng, H., Sim, S. K., & Chee, M. W. (2014). Sleep duration and age-related changes in brain structure and cognitive performance. Sleep, 37(7), 1171-1178. [Link]
Lo, J. C., Sim, S. K., & Chee, M. W. (2014). Sleep reduces false memory in healthy older adults. Sleep, 37(4), 665-671. [Link]
Lo, J. C., Leong, R. L., Loh, K. K., Dijk, D.-J., & Chee, M. W. (2014). Young adults' sleep duration on work days: differences between East and West. Frontiers in Neurology, 5, 81. [Link]

2007 - 2013

Möller-Levet, C. S., Archer, S. N., Bucca, G., Laing, E. E., Slak, A., Kabiljo, R., Lo, J. C., Santhi, N., von Schantz, M., Smith, C. P.,& Dijk, D.-J. (2013). Effects of insufficient sleep on circadian rhythmicity and expression amplitude of the human blood transcriptome. Proceedings of the National Academy of Sciences of the United States of America, 110(12), E1132-E1141. [Full text]
Lazar, A. S., Santhi, N., Hasan, S., Lo, J. C., Johnston, J. D., von Schantz, M., Archer, S. N., & Dijk, D.-J. (2013). Circadian period and the timing of melatonin onset in men and women: predictors of sleep during the weekend and in the laboratory. Journal of Sleep Research, 22(2), 155-159. [Full text]
Lo, J. C., Groeger, J. A., Santhi, N., Arbon, E. L., Lazar, A. S., Hasan, S., von Schantz, M., Archer, S. N., & Dijk, D.-J. (2012). Effects of partial and acute total sleep deprivation on performance across cognitive domains, individuals and circadian phase. PLoS One, 7(8), e45987. [Full text]
Lazar, A. S., Slak, A., Lo, J. C., Santhi, N., von Schantz, M., Archer, S. N., Groeger, J. A., & Dijk, D.-J. (2012). Sleep, diurnal preference, health, and psychological well-being: a prospective single-allelic-variation study. Chronobiology International, 29(2), 131-146. [Full text]
Hasan, S., Santhi, N., Lazar, A. S., Slak, A., Lo, J. C., von Schantz, M., Archer, S. N., Johnston, J. D., & Dijk, D.-J. (2012). Assessment of circadian rhythms in humans: comparison of real-time fibroblast reporter imaging with plasma melatonin. FASEB, 26(6), 2414-2423. [Full text]
Groeger, J. A., Lo, J. C., Burns, C. G., & Dijk, D.-J. (2011). Effects of sleep inertia following daytime naps increase with executive load and vary with time of day. Behavioral Neuroscience, 125(2), 252-260. [Full text]
Groeger, J. A., Viola, A. U., Lo, J. C., von Schantz, M., Archer, S. N., & Dijk, D.-J. (2008). Early morning executive functioning during sleep deprivation is compromised by a PERIOD3 polymorphism. Sleep, 31(8), 1159-1167. [Full text]
Viola A. U., Archer, S. N., James, L. M., Groeger, J. A., Lo, J. C., Skene, D. J., von Schantz, M., & Dijk, D.-J. (2007). PER3 polymorphism predicts sleep structure and waking performance. Current Biology, 17, 613-618. [Full text]

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