sleep deprivation is a condition of not having enough sleep it can be either chronic or acute. a chronic sleep-restricted state can cause fatigue. fatigue is a subjective state related to sleep deprivation, the more someone is deprived of sleep the more likely that person is to be fatigued. several studies indicated that drowsiness/fatigue can affect steering performance and speed control. rese...

background and objective: amygdala contains central nucleus which is the region rich of γ-aminobutyric acid (gaba-a) receptors and plays a key role in modulating behavior and sleep homeostasis. furthermore, dysfunction of amygdala probably contributes to anxiety and mood disorders. in this study, we evaluated the association between acute sleep deprivation (asd) and anxiety through gaba-a recep...

previous studies have shown that caffeine has beneficial effects on cognitive impairment in sleep deprived male rats. therefore in the present study, we examined the effects of chronic caffeine administration on learning and memory impairments induced by sleep deprivation (sd) in the intact and ovarectomized (ovx) female rats. two sets of animals including intact and ovx were randomly recruited...

conclusions the role of exercise is greater in the retention than the acquisition phase for recalling past experiences. background stress induced by sleep deprivation can cause degradation of learning in the acquisition phase, and low-intensity exercise can prevent the negative effects of stress. results the results showed that, after seven days of aerobic exercise on a treadmill, the experimen...

Sleep deprivation disrupts hippocampal function and plasticity. In particular, long-term memory consolidation is impaired by sleep deprivation, suggesting that a specific critical period exists following learning during which sleep is necessary. To elucidate the impact of sleep deprivation on long-term memory consolidation and synaptic plasticity, long-term memory was assessed when mice were sl...

The aim of this study was to investigate the effects of sleep deprivation induced anxiety on anaerobic performance. Thirteen volunteer male physical education students completed the Turkish version of State Anxiety Inventory and performed Wingate anaerobic test for three times: (1) following a full-night of habitual sleep (baseline measurements), (2) following 30 hours of sleep deprivation, and...

Study Objective: To examine whether differences in patterns of brain activation under baseline conditions relate to the differences in sleepdeprivation vulnerability. Design: Using blood oxygenation level dependent (BOLD) functional magnetic resonance imaging, we scanned 33 healthy young men while they performed the Sternberg working memory task following a normal night of sleep and again follo...

Sleep is regulated by humoral and homeostatic processes. If on one hand chronic elevation of stress hormones impair sleep, on the other hand, rapid eye movement (REM) sleep deprivation induces elevation of glucocorticoids and time of REM sleep during the recovery period. In the present study we sought to examine whether manipulations of corticosterone levels during REM sleep deprivation would a...

Effects of sleep deprivation on neural cardiovascular control may have important clinical implications. We tested the hypothesis that sleep deprivation increases heart rate, blood pressure, and sympathetic activity and potentiates their responses to stressful stimuli. We studied 8 healthy subjects (aged 40+/-5 years, 6 men and 2 women). Blood pressure, heart rate, forearm vascular resistance, a...

SLEEP AND THE DEPRIVATION OF SLEEP ARE BECOMING IMPORTANT ISSUES IN EVERYDAY LIFE. SLEEP DEPRIVATION HAS CONSEQUENCES FOR PUBLIC safety and health. Some obvious problems concern attention, vigilance, and fatigue,1 but less obvious ones are cardiovascular problems and obesity.2 Sleep deprivation is known to cause molecular, physiological, and behavioral changes. It changes the expression of imme...