A5022517808- Sleep and Work-Related Fatigue
- Sleep and related disorders
- Sleep and Wakefulness Research
- Occupational Health and Performance
- Ergonomics and Musculoskeletal Disorders
- Human-Automation Interaction and Safety
- Circadian rhythm and melatonin
- Salivary Gland Disorders and Functions
- Obstructive Sleep Apnea Research
- Homelessness and Social Issues
- COVID-19 and Mental Health
- Spaceflight effects on biology
- Neural dynamics and brain function
- Dietary Effects on Health
- EEG and Brain-Computer Interfaces
- Obesity, Physical Activity, Diet
- Pediatric health and respiratory diseases
- Impact of Light on Environment and Health
- Photoreceptor and optogenetics research
- Olfactory and Sensory Function Studies
- Urban Transport and Accessibility
- Workplace Health and Well-being
- Traffic and Road Safety
- Optical Imaging and Spectroscopy Techniques
- Salivary Gland Tumors Diagnosis and Treatment
San Jose State University
2019-2025
Universidad de San Jose
2024
University of Pittsburgh
2023
University of Southern Queensland
2023
Ames Research Center
2021-2022
Oregon Health & Science University
2022
Brigham and Women's Hospital
2020-2021
Circadian (United States)
2020-2021
Harvard University
2020-2021
University of South Australia
2015-2017
Abstract: Sleep inertia, or the grogginess felt upon awakening, is associated with significant cognitive performance decrements that dissipate as time awake increases. This impairment in has been observed both tightly controlled in-laboratory studies and real-world scenarios. Further, these are exaggerated by prior sleep loss of day which a person awakens. review will examine current insights into causes factors may positively negatively influence degree consequences inertia laboratory...
BackgroundThere is no consensus on reporting light characteristics in studies investigating non-visual responses to light. This project aimed develop a checklist for laboratory-based investigations the impact of physiology.MethodsA four-step modified Delphi process (three questionnaire-based feedback rounds and one face-to-face group discussion) involving international experts was conducted reach items be included checklist. Following process, resulting tested pilot phase with independent...
To assess sleep inertia following 10-min and 30-min naps during a simulated night shift. Thirty-one healthy adults (aged 21–35 y; 18 females) participated in 3-day laboratory study that included one baseline (BL) (22:00–07:00) experimental involving randomization to either: total deprivation (NO-NAP), nap (10-NAP) or (30-NAP). Nap opportunities ended at 04:00. A 3-min psychomotor vigilance task (PVT-B), digit-symbol substitution (DSST), fatigue scale, sleepiness self-rated performance scale...
Airline transport pilot sleep during layover is an important factor for alertness on subsequent flights. Assessing pilots' first step in helping them obtain the most recuperative possible layover. Here, we investigate quantity and timing of layovers determine predictors sleep. Sleep was assessed 256 pilots flying a total 473 long-range (LR; flight time 12-16 hours) or ultra-long-range (ULR; > 16 trips. using actigraphy. We employed linear mixed-effects models with characteristics as...
Objectives This study assessed the feasibility of Sleepfit, an app-based sleep intervention for shiftworkers, to evaluate participant reach, engagement, and interaction.
Shift work is a risk factor for chronic diseases such as Type 2 diabetes. Food choice may play role, however simply eating at night when the body primed sleep have implications health. This study examined impact of consuming big versus small snack on glucose metabolism. N = 31 healthy subjects (21-35 y; 18 F) participated in simulated nightshift laboratory that included one baseline (22:00 h-07:00 h) and awake with allocation to either (2100 kJ) or (840 group. The was consumed between...
Appropriate synchronization of the timing behaviors with circadian clock and adequate sleep are both important for almost every physiological process. The relative to social (ie, local) time can vary greatly among individuals. Whether these processes is stable within an individual not well-understood. We examined stability circadian-controlled melatonin timing, their interaction across ~ 100 days in 15 students at a single university. At three points 35-days apart, was determined from...
Summary Sleep inertia is the brief period of performance impairment and reduced alertness experienced after waking, especially from slow‐wave sleep. We assessed efficacy polychromatic short‐wavelength‐enriched light to improve vigilant attention, mood immediately waking sleep at night. Twelve participants (six female, 23.3 ± 4.2 years) maintained an actigraphy‐confirmed schedule 8.5 hr for 5 nights, 1 night prior overnight laboratory visit. In laboratory, were awakened sleep, exposed either...
Olfactory sensitivity has traditionally been viewed as a trait that varies according to individual differences but is not expected change with one's momentary state. Recent research begun challenge this position and time of day shown alter detection levels. Links between obesity the timing food intake further raise issue whether odor may vary function circadian processes. To investigate question, 37 (21 male) adolescents (M age = 13.7 years) took part in 28-h forced desynchrony (FD) protocol...
Study Objectives:Primary Sjögren's syndrome is an autoimmune disease typified by xerostomia (dry mouth) that, in turn, could lead to increased saliva surface tension (Y) and upper airway collapsibility. Fatigue, of unknown etiology, also frequently reported patients with primary syndrome. Recent preliminary data indicate a high prevalence obstructive sleep apnea healthy-weight women Concurrent research highlights significant role Y the maintenance patency. The aim this study was compare oral...
Under laboratory settings, light exposure upon waking at night improves sleep inertia symptoms. We investigated whether a field-deployable source would mitigate in real-world setting. Thirty-six participants (18 female; 26.6 years ± 6.1) completed an at-home, within-subject, randomized crossover study. Participants were awoken 45 minutes after bedtime and wore light-emitting glasses with the either on (light condition) or off (control). A visual 5-minute psychomotor vigilance task,...
Napping is a useful countermeasure to the negative effects of acute sleep loss on alertness. The efficacy naps recover from chronic less well understood. Following 2 baseline nights (10 hours' time-in-bed), participants were restricted 7 5-hour opportunity. Ten adults participated in No-Nap condition, and further 9 assigned Nap condition with daily 45-minute nap opportunity at 1300 h. Sleepiness was assessed using multiple latency test visual analogue scale 2-hour intervals. Both objective...
Short naps on night shift are recommended in some industries. There is a paucity of evidence to verify the sustained recovery benefits short last few hours shift. Therefore, current study aimed investigate 30 and 10-min nap opportunities during simulated Thirty-one healthy participants (18F, 21–35 y) completed 3-day, between-groups laboratory with one baseline (22:00–07:00 h time bed), followed by awake (time from 07:00 day two through 10:00 three) random allocation to: opportunity ending at...
Sleep inertia is a safety concern for shift workers returning to work soon after waking up. Split duty schedules offer an alternative longer periods, but introduce additional wake-ups and may therefore increase risk of sleep inertia. This study investigated across split schedule. Sixteen participants (age range 21–36 years; 10 females) participated in 9-day laboratory with two baseline nights (10 h time bed, [TIB]), four 24-h periods 6-h on/6-h off schedule (5-h TIB period; 10-h per 24 h)...
Sleep inertia, the transitional state of reduced alertness and impaired cognitive performance upon waking, is a safety risk for on-call personnel who can be required to perform critical tasks soon after waking. inertia countermeasures have previously been investigated; however, none successfully dissipated sleep within first 15 min following During this time, could already driving, providing advice, or performing other safety-critical tasks. Exercise has not yet investigated as...
Abstract Cross-sectional observations have shown that the timing of eating may be important for health-related outcomes. Here we examined stability timing, using both clock hour and relative circadian time, across one semester (n = 14) at daily monthly time-scales. At three time points ~ 1 month apart, phase was determined during an overnight in-laboratory visit photographically recorded week to assess composition. Day-to-day measured Composite Phase Deviation (deviation from a perfectly...