Article
Public, Environmental & Occupational Health
Bjorn Bjorvatn, Stale Pallesen, Siri Waage, Eirunn Thun, Kjersti M. Blytt
Summary: The study aimed to investigate the effects of timed bright light treatment on hospital nurses during three consecutive night shifts. While bright light significantly reduced heavy eyelids, it had limited impact on subjective and objective measures of sleepiness. The bright light treatment did not convincingly reduce sleepiness among nurses during night shifts or impede their readaptation back to a day-oriented rhythm afterward.
SCANDINAVIAN JOURNAL OF WORK ENVIRONMENT & HEALTH
(2021)
Article
Clinical Neurology
A. Gibbings, L. B. Ray, N. Berberian, T. Nguyen, A. Shahidi Zandi, A. M. Owen, F. J. E. Comeau, S. M. Fogel
Summary: The study shows that just one night of mild sleep loss significantly increases sleepiness and reduces vigilance. Furthermore, this sleep loss affects brain physiology in ways that indicate decreased arousal.
CLINICAL NEUROPHYSIOLOGY
(2021)
Article
Psychiatry
Christoph Berger, Alexander Dueck, Stephanie Gest, Lena Jonas, Michael Koelch, Franziska Martin, Olaf Reis, Jennifer Schroth, Tanja Legenbauer, Martin Holtmann
Summary: This study compared brain arousal levels between adolescents with depression receiving bright light therapy and those receiving treatment as usual. The results showed that bright light therapy increased brain arousal in depressed adolescents. Severe depressive symptoms were associated with higher arousal levels.
FRONTIERS IN PSYCHIATRY
(2022)
Article
Psychology, Applied
Mark E. McCauley, Peter McCauley, Samantha M. Riedy, Siobhan Banks, Adrian J. Ecker, Leonid V. Kalachev, Suresh Rangan, David F. Dinges, Hans P. A. Van Dongen
Summary: Research on fatigue biomathematical models for predicting subjective sleepiness showed high prediction accuracy. The study identified differences between subjective and objective outcomes predictions, highlighting potential risks in safety-sensitive operations such as commercial aviation. The validated model provides a useful quantitative tool to bridge this previously unrecognized gap.
TRANSPORTATION RESEARCH PART F-TRAFFIC PSYCHOLOGY AND BEHAVIOUR
(2021)
Article
Neurosciences
Joel T. Martin, Annalise H. Whittaker, Stephen J. Johnston
Summary: Baseline and task-evoked pupil measures reflect the activity of the central arousal mechanisms of the nervous system. This study explored the relationship between pupil size and behavioral performance in visual vigilance tasks, finding that both performance and task-evoked pupil responses declined as time spent on task increased. However, baseline pupil size did not consistently relate to performance measures.
EUROPEAN JOURNAL OF NEUROSCIENCE
(2022)
Article
Engineering, Industrial
Arne Nieuwenhuys, Jonas Dora, Melanie Knufinke-Meyfroyt, Debby Beckers, Gerard Rietjens, Pieter Helmhout
Summary: The study found that submariners experienced suboptimal sleep, cognitive performance, and self-reported recovery status throughout a long military mission, with day-to-day fluctuations gradually leading to overall deterioration in performance.
APPLIED ERGONOMICS
(2021)
Review
Clinical Neurology
Daniel Chih Yung Cheng, James L. Ganner, Christopher J. Gordon, Craig L. Phillips, Ronald R. Grunstein, Maria Comas
Summary: Combined melatonin and bright light therapies have significant effects on improving sleep and circadian outcomes, with better efficacy in elderly populations compared to patients with delayed sleep-wake phase disorder. Adverse effects of melatonin in elderly populations should be carefully considered, and future studies should further investigate the separate and combined effects of these therapies in different target populations.
SLEEP MEDICINE REVIEWS
(2021)
Article
Psychology, Multidisciplinary
Craig A. Williamson, Jari J. Morganti, Hannah E. Smithson
Summary: This study used a HDR display to produce bright-light distractions and found that they significantly increased the mean fixation duration, but had no significant effect on task efficiency.
FRONTIERS IN PSYCHOLOGY
(2023)
Article
Clinical Neurology
Spencer A. Nielson, Daniel J. Buysse, Daniel B. Kay
Summary: This study investigated the relationship between performance on a psychomotor vigilance task (PVT) and changes in self-reported sleepiness during a rested condition. Lower fidelity of information processing predicted higher post-sleepiness, suggesting a potential link between vigilance performance and subjective sleepiness.
NATURE AND SCIENCE OF SLEEP
(2021)
Article
Clinical Neurology
Emily J. Ricketts, Helen J. Burgess, Gabrielle E. Montalbano, Meredith E. Coles, Joseph F. McGuire, Hardian Thamrin, Dana L. McMakin, James T. McCracken, Mary A. Carskadon, John Piacentini, Christopher S. Colwell
Summary: Individuals with TD commonly experience sleep disturbances. This study found that adults with TD had greater eveningness and sleep disturbances compared to healthy controls. Morning light therapy showed some benefits, including advances in DLMO phase and reductions in daytime sleepiness and anxiety. Further exploration of spectral tuning the photic environment as part of treatment for TD subjects is recommended.
JOURNAL OF NEUROLOGY
(2022)
Article
Clinical Neurology
Elisa Evangelista, Anna Laura Rassu, Regis Lopez, Niccolo Biagioli, Sofiene Chenini, Lucie Barateau, Isabelle Jaussent, Yves Dauvilliers
Summary: This study aimed to determine whether the psychomotor vigilance task (PVT) can reliably measure sleep inertia in patients with idiopathic hypersomnia (IH) and other sleep disorders. The results showed that PVT is a reliable and objective measure of sleep inertia, and it may be useful for characterizing, managing, and monitoring IH.
Article
Engineering, Industrial
Jaime K. Devine, Mellena G. Nichols, Lindsay P. Schwartz, Jake Choynowski, Steven R. Hursh
Summary: This study aimed to compare model predictions with actual performance and explore the predictive ability of the model for sleep timing and duration in firefighters. The results showed that the model accurately predicted firefighter performance, but had limited success in predicting sleep effectiveness, indicating the need for improvement.
Review
Public, Environmental & Occupational Health
Matthew Ferris, Kelly-Ann Bowles, Mikaela Bray, Emma Bosley, Shantha M. W. Rajaratnam, Alexander P. Wolkow
Summary: The Psychomotor Vigilance Test (PVT) is widely used to assess vigilant attention among shift workers, but there is limited research on its application and performance in different naturalistic shift work settings. This review evaluated existing literature on PVT performance in response to various shift work schedules and suggested that consistent timing of the test application leads to congruent results. Future research should focus on exploring the use of PVT during extended duty shifts.
INTERNATIONAL ARCHIVES OF OCCUPATIONAL AND ENVIRONMENTAL HEALTH
(2021)
Article
Ergonomics
Jennifer M. Cori, Luke A. Downey, Tracey L. Sletten, Caroline J. Beatty, Brook A. Shiferaw, Shamsi Shekari Soleimanloo, Sophie Turner, Aqsa Naqvi, Maree Barnes, Jonny Kuo, Michael G. Lenne, Clare Anderson, Andrew J. Tucker, Alexander P. Wolkow, Anna Clark, Shantha M. W. Rajaratnam, Mark E. Howard
Summary: Extending the major rest break between shifts to 11 hours significantly increases sleep duration and has a modest positive impact on driver alertness and performance. However, lane departures per hour were increased under the 11-hour rest condition.
ACCIDENT ANALYSIS AND PREVENTION
(2021)
Article
Biotechnology & Applied Microbiology
Akhil Chaudhari, Xinlong Wang, Anqi Wu, Hanli Liu
Summary: Transcranial photobiomodulation (tPBM) is a non-invasive neuromodulation tool that has been shown to improve human cognition when administered repeatedly using light-emitting diodes (LEDs). In this study, the electrophysiological effects of LED-tPBM on the human brain were investigated using electroencephalography (EEG) in healthy participants. The results showed that a 4-week tPBM treatment significantly improved the participants' vigilance performance, as measured by a psychomotor vigilance task (PVT). EEG recordings during a 10-minute LED-tPBM session while performing the PVT task revealed acute increases in delta and alpha powers. Furthermore, after four weeks of LED-tPBM, theta, beta, and gamma powers significantly increased overall. By combining group's singular value decomposition (gSVD) with eLORETA, EEG brain networks and their power changes after four weeks of tPBM were identified. This study clearly demonstrated the neuromodulatory effects of a 4-week prefrontal LED-tPBM on key EEG networks, suggesting a possible causal relationship between modulated brain networks and improved psychomotor vigilance outcomes.
BIOENGINEERING-BASEL
(2023)