Subjective sleep quality and sleep duration of patients in a psychiatric hospital
Publication date: Available online 16 September 2016 Source:Sleep Science Author(s): Matthias J. Müller, Christiane Olschinski, Bernd Kundermann, Nicole Cabanel Sleep complaints and sleep disturbances are highly prevalent in patients with psychiatric disorders. During hospitalization the patients’ condition may be even worse but little is known about the subjective sleep quality in psychiatric hospitals. Thus, we have investigated subjective sleep quality and mean sleep duration in patients with different psychiatric disorders at the end of hospitalization. For a period of one year, inpatients of a psychiatric hos...
Source: Sleep Science - September 17, 2016 Category: Sleep Medicine Source Type: research
Sleep restriction may lead to disruption in physiological attention and reaction time
The objective of the present study was to investigate the mental attention (P300) and reaction time [visual (VRT) and auditory (ART)] among night watchmen, at subsequent; first (1st) day, fourth (4th) day and seventh (7th) day of restricted sleep period. After exclusion and inclusion criteria, the study was performed among 50 watchmen (age=18–35 years) (n=50) after providing written informed consent and divided into two group. Group I-(Normal sleep) (n=28) working in day time and used to have normal sleep in night (≥8h); Group II-(Restricted sleep) (n=22) - working in night time and used to have less sleep in night (â‰...
Source: Sleep Science - September 14, 2016 Category: Sleep Medicine Source Type: research
The association between poor sleep quality and global cortical atrophy is related to age. Results from the Atahualpa Project
This study provides evidence for an association between poor sleep quality and GCA in older adults and the important interaction of age in this association. (Source: Sleep Science)
Source: Sleep Science - September 9, 2016 Category: Sleep Medicine Source Type: research
Inter-device reliability of an automatic-scoring actigraph for measuring sleep in healthy adults
Publication date: Available online 24 August 2016 Source:Sleep Science Author(s): Matthew Driller, Joseph McQuillan, Shannon O’Donnell Actigraphy has become a common method of measuring sleep due to its non-invasive, cost-effective nature. An actigraph (Readiband™) that utilizes automatic scoring algorithms has been used in the research, but is yet to be evaluated for its inter-device reliability. A total of 77 nights of sleep data from 11 healthy adult participants was collected while participants were concomitantly wearing two Readiband™ actigraphs attached together (ACT1 and ACT2). Sleep indices including tot...
Source: Sleep Science - August 24, 2016 Category: Sleep Medicine Source Type: research
Phenotypic contrasts of Duchenne Muscular Dystrophy in women: Two case reports
Publication date: Available online 18 August 2016 Source:Sleep Science Author(s): Karen T. Nozoe, Ricardo T. Akamine, Diego R. Mazzotti, Daniel N. Polesel, LuÃs F. Grossklauss, Sergio Tufik, Monica L. Andersen, Gustavo A. Moreira We discussed two cases of symptomatic female carriers to Duchenne Muscular Dystrophy. The first case is a 20 year-old girl with classical phenotypic manifestation of the disease, similar to the condition in boys. The case 2 is a 62 year-old woman with progressive muscular weakness. The disease is much less common in woman than men so both cases described here are considered rare forms o...
Source: Sleep Science - August 18, 2016 Category: Sleep Medicine Source Type: research
Obstructive sleep apnea: Underestimated risk factor in sudden cardiac death in schizophrenia
Publication date: Available online 17 August 2016 Source:Sleep Science Author(s): Fulvio A. Scorza, Carla A. Scorza, Esper A. Cavalheiro, Sergio Tufik, Monica L. Andersen (Source: Sleep Science)
Source: Sleep Science - August 17, 2016 Category: Sleep Medicine Source Type: research
Loss of melatonin daily rhythmicity is asociated with delirium development in hospitalized older adults
In this study we have explored whether circadian variation of melatonin is an indicator for delirium. Melatonin levels were determined from the first day of hospitalization and up to three days after the onset of delirium. Patients who did not developed delirium exhibited a daily melatonin rhythm, while in patients that developed delirium, the melatonin rhythm was lost and mean melatonin levels were found decreased as early as three days before the diagnosis of delirium, indicating that on arrival to the hospital circadian melatonin disruption can be used as an indicator of delirium. (Source: Sleep Science)
Source: Sleep Science - August 10, 2016 Category: Sleep Medicine Source Type: research
Sleep-patterns, co-sleeping and parent's perception of sleep among school children: Comparison of domicile and gender
Conclusion Television watching before bedtime was more common among urban school children and they had shorter total sleep time. They had signs of sleep deprivation. Room sharing was more common among rural children. Despite longer sleep time, parents of rural children felt the need for more sleep. (Source: Sleep Science)
Source: Sleep Science - August 4, 2016 Category: Sleep Medicine Source Type: research
Comparative analysis of actigraphy performance in healthy young subjects
In conclusion, depending on the type of study and analysis desired (as well as cost and compliance of use), we propose some relative advantages for the different actigraphy/temperature recording devices. (Source: Sleep Science)
Source: Sleep Science - July 26, 2016 Category: Sleep Medicine Source Type: research
Sexsomnia: A case of sleep masturbation documented by video-polysomnography in a young adult male with sleepwalking
Publication date: Available online 28 June 2016 Source:Sleep Science Author(s): Shih-Bin Yeh, Carlos H. Schenck The first case of video-polysomnography (vPSG) documented sleep masturbation in a male is reported, and the second reported case of shift work induced sexsomnia. A 20 y.o. soldier with childhood sleepwalking (SW) developed sleep masturbation and SW triggered by military shift work. vPSG documented two episodes of sleep masturbation from N2 sleep in the fourth sleep cycle and from N3 sleep during the fifth sleep cycle. There was no sleep-disordered breathing nor periodic limb movements. vPSG thus confirmed...
Source: Sleep Science - July 26, 2016 Category: Sleep Medicine Source Type: research
Sleep architecture alterations in patients with periodic limb movements disorder during sleep and sleep breathing disorders
Conclusions Periodic limb movements and breathing disorders, resulted in more additive changes in sleep architecture alterations, than as separately disorders, in a complex interaction. Research in these relations deserve more investigations. (Source: Sleep Science)
Source: Sleep Science - July 26, 2016 Category: Sleep Medicine Source Type: research
Circadian preferences and sleep in 15- to 20-year old Finnish students
This study explored gender and diurnal rhythms in relation to several sleep-related factors: sleep duration, bedtime, wake-up time, tiredness, sleepiness, and optimal subjective sleep duration Methods Circadian preferences and sleep were investigated in 555 (Females N=247) Finnish students aged 15–20. The self-report measures included a shortened version of the Horne-Östberg Morningness-Eveningness Scale, the Epworth Sleepiness Scale as well as items probing feelings of tiredness, optimal subjective sleep durations, and bedtime and wake-up time on the most recent day and a typical weekend. Data were collected from Tue...
Source: Sleep Science - July 26, 2016 Category: Sleep Medicine Source Type: research
The experience of a Power Nap Center in the largest city of Brazil
Publication date: Available online 15 July 2016 Source:Sleep Science Author(s): Rogerio Santos-Silva, Camila Jankavski, Geraldo Lorenzi-Filho We evaluated the frequency of naps and features of nappers who took a nap in a Power Nap Center located in downtown area of São Paulo. Company database was retrospectively analyzed and 4.625 naps were evaluated (January–December 2014). Most naps (57%) lasted 30min. 33% of subjects took a nap more than once a week (73% male). Progressive growth in the number of naps across the months was observed (January=110 to December=505). Results suggest that the society is sleep dep...
Source: Sleep Science - July 26, 2016 Category: Sleep Medicine Source Type: research
Applicability of the actigraphy for astronauts in spaceflight
Publication date: Available online 15 July 2016 Source:Sleep Science Author(s): Tomoyuki Kawada (Source: Sleep Science)
Source: Sleep Science - July 26, 2016 Category: Sleep Medicine Source Type: research
Exploration of the experience of living with chronic insomnia: A qualitative study
Conclusion The study identified the experience of living with chronic insomnia as a painful one with both mental and practical aspects. The experience also explains how mental engagement and practical outcomes of chronic insomnia may interfere with well-being and quality of life in sufferers. It is recommended that patients' experiences would be considered in assessment and treatment of chronic insomnia. Therefore, therapeutic interventions should pay attention to this area. (Source: Sleep Science)
Source: Sleep Science - July 26, 2016 Category: Sleep Medicine Source Type: research
