Sleep (system call)

About: Sleep (system call) is a research topic. Over the lifetime, 2633 publications have been published within this topic receiving 27806 citations. The topic is also known as: Sleep() & sleep().

Urethane Anesthesia Exhibits Neurophysiological Correlates of Unconsciousness and is Distinct from Sleep.

Abstract: Urethane is a general anesthetic widely used in animal research. The state of urethane anesthesia is unique because it alternates between macroscopically distinct electrographic states: a slow-wave state that resembles NREM sleep, and an activated state with features of both REM sleep and wakefulness. Although it is assumed that urethane produces unconsciousness, this has been questioned because of states of cortical activation during drug exposure. Furthermore, the similarities and differences between urethane anesthesia and physiological sleep are still unclear. In this study, we recorded the electroencephalogram (EEG) and electromyogram in chronically prepared rats during natural sleep-wake states and during urethane anesthesia. We subsequently analyzed the power, coherence, directed connectivity and complexity of brain oscillations, and found that EEG under urethane anesthesia has clear signatures of unconsciousness, with similarities to other general anesthetics. In addition, the EEG profile under urethane is different in comparison to natural sleep states. These results suggest that consciousness is disrupted during urethane. Furthermore, despite similarities that have led others to conclude that urethane is a model of sleep, the electrocortical traits of depressed and activated states during urethane anesthesia differ from physiological sleep states.

Method and device of controlling terminal alarm clock

Abstract: The embodiment of the invention discloses a method and device of controlling a terminal alarm clock. The method comprises the steps that a sleep analyzing result of a user is acquired; recognition on the sleep analyzing result of the user is conducted; when the sleep analyzing result of the user is recognized that the user is in a sleep state, judgment on whether the current time reaches to a preset time of the alarm clock or not is conducted; when the current time reaches to the preset time of the alarm clock, the alarm clock on the terminal is closed. The implement of the method of controlling the terminal alarm clock has the advantages that alarms in sleep period can be filtered effectively, and the sleep quality of the user is improved.

Sleep aid system and operation method thereof

Abstract: A sleep aid system and an operation method thereof are disclosed. The sleep aid system includes a sleep aid device including a retrieving module, a processing module, and a transmitting module, and a server. The retrieving module retrieves a brainwave signal including specific frequency band signals. The processing module analyzes the brainwave signal to obtain an index in each of the specific frequency band signals and calculates a sleepless degree parameter representing one of at least five brainwave states regarding sleep accordingly. The transmitting module transmits a parameter signal corresponding to the sleepless degree parameter. The server receives the parameter signal from the transmitting module. The server stores comparison data, compares the parameter signal to the comparison data, and generates a first feedback signal according to a comparison result. The first feedback signal includes a command to switch an audio file or stream which is currently being played.

Adherence to the Mediterranean Diet and Its Association With Sleep Quality and Chronotype Among Youth: A Cross-Sectional Study

Abstract: Background Evidence indicates that many university students have poor adherence to a healthy diet accompanied by unhealthy lifestyle behaviors. Chrono-nutrition is an emerging field of research that examines the pattern of optimum daily activity in relation to the human's dietary patterns, and their reflections of variable health indicators such as sleep quality. However, there is a scarcity of research that examines the relationship between adherence to the healthy eating pattern, like the Mediterranean diet (MD), with sleep quality and chronotype among university students. Methods A cross-sectional study was conducted, and convenience sampling was used. Participants were assessed for adherence to the MD using the Mediterranean Diet Quality Index (KIDMED), for sleep quality using the Pittsburgh Sleep Quality Index (PSQI), and for chronotype using the Morningness-Eveningness questionnaire (MEQ). Results The study included 503 university students, most of them (81.5%) were females. Only 15.1 and 16.9% reported morningness chronotype and good sleep quality, respectively. About half of the students showed medium and high adherence to the KIMED. In-depth analysis revealed that students with good adherence to the MD were more likely to have a good sleep quality (OR = 0.35; 95%CI: 0.21–0.59; P < 0.001) even after adjustment for age and sex (OR = 0.36; 95%CI: 0.21–0.62; P < 0.001). The regression analysis also showed that those with good adherence to the MD had a significant association with better subjective sleep quality, less sleep latency, sleep disturbance, and daytime dysfunction even after adjustment for age and sex. Those with morningness chronotype had about a six-fold higher chance to have good adherence to the MD (OR = 5.67; 95%CI: 2.86–11.26; P < 0.001, respectively). Conclusions Good adherence to the healthy diet presented in the MD among university students is associated with morningness chronotype and with improved overall sleep quality and sleep components. Long-term, controlled intervention research works are warranted for more elaboration on the impact of chronotype and dietary habits on sleep quality and other important aspects such as mental health and academic achievement.