Active clinical trials for "Sleep Wake Disorders"

To determine the effects of tDCS on subjective measures of sleepiness in night-shift workers with shift work disorder. To determine the effects of transcranial direct current stimulation (tDCS) on vigilance in night-shift workers with shift work disorder.

Many service members returning from Iraq and Afghanistan have difficulties adjusting back to civilian life. Research shows that symptoms of posttraumatic stress disorder (PTSD) are particularly high in returning Operation Enduring Freedom (OEF)/Operation Iraqi Freedom (OIF) veterans, and that combat-related nightmares and sleep disturbances are common in veterans with PTSD. This is of concern because people with these problems will often use unhealthy ways of coping. Although combat-related nightmares and difficulty sleeping are highly distressing, there are helpful treatments that do not involve taking medication. One of these treatments teaches specific skills to help people improve their sleep habits and to change their nightmares so that they are less upsetting. This treatment can be very helpful and research shows that people experience decreases in the frequency and severity of their nightmares, decreased symptoms of depression and PTSD, and improved sleep quality and quantity after completing treatment. However, because this treatment has only been studied with civilians, it is not clear how well this treatment works for returning veterans. This study tests how well this treatment works in treating combat nightmares in veterans who also have PTSD from experiencing a traumatic event.

Research shows that symptoms of posttraumatic stress disorder (PTSD) are particularly high in veterans, and that trauma-related nightmares and sleep disturbances are common in veterans with PTSD. This is of concern because people with these problems will often use unhealthy ways of coping. Although trauma-related nightmares and difficulty sleeping are highly distressing, there are helpful treatments that do not involve taking medication. One of these treatments teaches specific skills to help people improve their sleep habits and to change their nightmares so that they are less upsetting. This treatment can be very helpful and research shows that people experience decreases in the frequency and severity of their nightmares, decreased symptoms of depression and PTSD, and improved sleep quality and quantity after completing treatment. However, because this treatment has only been studied with civilians, it is not clear how well this treatment works for veterans.

Sleep disorders affect 40% of the adult population each year and are often associated with morbidity and mortality (Kripke et al., 2002; F.-Z. Low et al., 2017). Sleep quality plays a vital role in the overall quality of our lives. Therefore, a good sleep helps to create a quality life rhythm. A quality sleep reduces fatigue and increases physical regeneration (Khaleghipour et al., 2015). Poor sleep quality is due to various environmental factors such as temperature, light, noise and bed quality (Lei et al., 2009). It has been reported that 7% of sleep problems are caused by inappropriate mattresses that affect the load on the spine during sleep (F. Z. Low et al., 2017). Body contact pressure is a measure of the distribution of body weight across the body surface in contact with the mattress. A well-designed mattress usually has the ability to minimize high pressure points applied to the body. However, if the bed is not suitable for the person, pressure sores may develop in the body parts where pressure is intense (Cullum et al., 2004). The areas most affected by high pressure are usually the hips, shoulders and back, which can affect sleep quality and result in drowsiness or body stiffness throughout the day (Jacobson et al., 2002). A recent study by Bae and Ko compared the bed positions of hospital beds and found that a head-to-foot angle of 30° is the best position to reduce the likelihood of decubitus ulcers occurring in patients in high-pressure risk areas (Bae & Ko, 2013). In the light of previous studies, it has been observed that there is no study comparing many bed types designed using different materials for individual-specific postures. Biomechanical comparison of these bedding materials in individuals with different posture types and sleeping in different sleeping positions will allow us to provide new insights into their pressure distribution abilities. The aim of this study is to measure the effect of mattresses made of different mattress materials on body contact pressure profiles in individuals with different postures in various sleeping positions. It will be evaluated using maximum body pressure and pressure distribution as outcome measures.

The purpose of this study is to verify the efficacy of NPC-15 (melatonin 1 mg/d or 4 mg/d) versus placebo to sleep latency with electronic sleep diaries.

The purpose of this study is to evaluate the efficacy on sleep latency with electronic sleep diaries and the safety of NPC-15.

The purpose of this study is test the effectiveness of the PowerSleep auditory stimulation device on sleep quality and daytime functioning in individuals who have insufficient sleep. The PowerSleep device is a non-invasive portable device designed to increase deep sleep, potentially reducing daytime sleepiness related to insufficient sleep. The device is meant to be worn while a person is sleeping. The device delivers soft audio tones (below 65dB (decibels)/ normal speaking voice) via headphones periodically throughout the night and records the electrical activity of the brain (electroencephalogram (EEG)). The device consists of a headband with 4 sensors on the forehead, one sensor behind the right ear, headphones covered by speaker foam over each ear, and a cable which connects the headband to an upper arm band. The armband contains the device electronics. The headband and the armband are connected via adjustable Velcro closure. This device has not been released for sale and is considered investigational. The study includes approximately 30 people from four study sites. It is anticipated that a total of up to 10 people will complete the study at this site. This study is designed to last up to 6 weeks.

Whole-body periodic acceleration (WBPA) is a new, non-invasive, and promising therapy for a diverse and growing list of disorders including cardiovascular disease. During WBPA, patients lie in the supine position on a bed that is capable of translating back and forth parallel to the ground, along the head-to-foot axis of the patient. Thus, this treatment is best described as a form of "passive exercise." The frequency of the translation (up to 180 cycles/minute; cpm) as well as the distance traveled (2-24mm) by the bed can be adjusted by the patient or health care professional. The science behind the therapeutic effects of WBPA still remains largely unknown. The investigators are observing how WBPA may impact on sleep and activity in individuals with Parkinson's disease.

The purpose of the research study is to understand the effectiveness of a six-week course of light exposure on cognitive functioning, mood, activity, and sleep in people that have suffered a head injury leading to a concussion.

The present project is aimed to contribute with new knowledge concerning how light conditions in the physical environment can be manipulated to alter the sleep and circadian rhythms of individuals with an evening-type circadian rhythm. More precisely, the study will explore whether exposure to blue light (compared to a full spectrum light control condition) during the morning hours advance the circadian rhythms of evening-type individuals, towards that which is more similar to the daily rhythm of morning-type individuals. This study is important as it has been found that evening-type adolescents and adults are at higher risk of poor academic performance and demonstrate lower intellectual performance when tested at their nonoptimal early times of day, and given the fact that most schools and workplaces structure their working hours during such early hours of the day. Such an intervention could thus help evening-type individuals better adjust to the different early day requirements that they are exposed to. The project involves a three-day intervention where participants will be exposed to blue monochromatic light, administered through ceiling mounted light emitting diode (LED)-based room lighting, in the early hours of each morning for a duration of 60 min. The participants' sleep, circadian rhythm and waking function will be assessed both objectively and subjectively. The effects of the intervention are transferable to real life educational and work settings and can thus be applied in naturalistic settings. The intervention is based on the new laboratory infrastructure available at the sleep laboratory situated in Christies gate 12.