Publications by authors named "M St-Hilaire"
Previous research has revealed that daily variations in human neurobehavioral functions are driven in part by the endogenous circadian system. The objective of this study was to explore whether there exists a circadian influence on performance regarding a risky decision-making task and to determine whether the performance changes with sleep deprivation (SD). Thirteen participants underwent a 39 h constant routine (CR) protocol, during which they remained awake in constant conditions and performed the BART (balloon analogue risk task) every two hours.
View Article and Find Full Text PDFStudy Objectives: We previously reported that during a 45-day simulated space mission, a dynamic lighting schedule (DLS) improved circadian phase alignment and performance assessed once on selected days. This study aimed to evaluate how DLS affected performance on a 5-minute psychomotor vigilance task (PVT) administered multiple times per day on selected days.
Methods: Sixteen crewmembers (37.
Article Synopsis
- The study investigates how different work schedules affect the performance of resident physicians, particularly focusing on the impact of extended duty hours and sleep deprivation.
- Using a mathematical model, researchers compared performance metrics, specifically attentional failures, between those on standard prolonged shifts and those on a rapidly cycling schedule designed to limit continuous work hours.
- Results indicated that physicians on extended shifts experienced significantly more performance impairment, particularly at night, and that overall performance declined over time on both schedules, with a greater decline observed in those with extended hours.
Objective: To examine effects of menstrual phase and nighttime light exposure on subjective sleepiness and auditory Psychomotor Vigilance Task performance.
Methods: Twenty-nine premenopausal women (12 =Follicular; 17 =Luteal) completed a 6.5-hour nighttime monochromatic light exposure with varying wavelengths (420-620 nm) and irradiances (1.
Objective: There is no recommendation in the literature on optimal positioning of the newborn immediately at birth during delayed cord clamping. To evaluate if prone positioning on the mother's chest at birth during delayed cord clamping leads to a higher hematocrit at 30 hours of life compared to supine positioning.
Study Design: A randomized unblinded trial comparing prone and supine position of the newborn before umbilical cord clamping.