Abstract Introduction Sleep deprivation impairs some higher-order cognitive processes, but this impairment may reflect changes in motivation as well the capacity to perform task, which has implications for intervention strategies. Here, we asked whether reward could offset effects of sleep on placekeeping, a process that is prevalent performance everyday tasks. To conduct study under pandemic c...

Shorter sleep duration is linked to obesity, coronary artery disease, and diabetes. Whether sleep deprivation during the postpartum period affects maternal postpartum weight retention remains unknown. This study examined the association of sleep at 6 months postpartum with substantial postpartum weight retention (SPPWR), defined as 5 kg or more above pregravid weight at 1 year postpartum. The a...

OBJECTIVE To determine sleep deprivation and its consequences on doctors in tertiary care hospitals. METHODS The cross-sectional study was conducted from February to May 2012 and comprised house officers and postgraduate trainees at 4 public and 1 private tertiary care hospitals in Karachi. The subjects were posted in wards, out-patient departments and emergencies. A proforma was designed wit...

Brief periods of sleep loss have long-lasting consequences such as impaired memory consolidation. Structural changes in synaptic connectivity have been proposed as a substrate of memory storage. Here, we examine the impact of brief periods of sleep deprivation on dendritic structure. In mice, we find that five hours of sleep deprivation decreases dendritic spine numbers selectively in hippocamp...

sleep deprivation (sd) is known to result in a range of neurological, cognitive and physical consequences in chronically-afflicted subjects. the respiratory nuclei of brain-stem tend to play a pivotal part in the regulating sleep function, hence hypothesized to be affected in various types of sleep-related dysfunctions. the purpose of this methodological report is to explain the techniques of r...

STUDY OBJECTIVES The Psychomotor Vigilance Task (PVT) contains variable response-stimulus intervals (RSI). Our goal is to investigate the effect of RSI on performance to determine whether sleep deprivation affects the ability to attend to events across seconds and whether this effect is independent of impairment in sustaining attention across minutes, as measured by time on task. DESIGN A con...

STUDY OBJECTIVES Sleep deprivation can affect the waking EEG that may reflect information processing of the brain. We examined the effect of total sleep deprivation (TSD) on nonlinear dynamics of the waking EEG. DESIGN Paired-group design. SETTING A sleep disorders laboratory in a hospital. PARTICIPANTS Twenty healthy male volunteers. INTERVENTIONS Waking EEG data were recorded from sub...

Physical exhaustion, anxiety, stress, and sleep deprivation are common in the life of a physician. Residents of Internal Medicine, General Surgery, Psychiatry, Emergency Medicine, and Obstetrics and Gynecology work around 80 hours per week in their residency years. Residency training is physically demanding and highly stressful, and can become even difficult if the female resident is pregnant. ...

STUDY OBJECTIVES The aim of this study was to investigate the issue of whether REM sleep is involved in implicit learning through the cerebellum-related neural circuit via the use of classical eyeblink conditioning (CEC). DESIGN Subjects were divided into three groups: control (sleep without interruption), REM sleep deprivation (RD), and slow wave sleep (stage 3+4) deprivation (SD). The CEC w...

STUDY OBJECTIVES Partial sleep deprivation and alcohol consumption are a common combination, particularly among young drivers. We hypothesized that while low blood alcohol concentration (<0.05 g/dL) may not significantly increase crash risk, the combination of partial sleep deprivation and low blood alcohol concentration would cause significant performance impairment. DESIGN Experimental SE...