In a study of sleep-deprived versus well-rested individuals, UC Berkeley researchers found that the brains of those lacking sufficient sleep exhibited heightened activity in areas that deal with perceived human threats and a shutdown of areas that encourage social interaction. People shown videos of sleep-deprived individuals felt more alienated, suggesting that antisocial feelings are contagious. This is the first study to show a two-way relationship between sleep loss and becoming socially isolated.
A new study led by Ana Sebastião, group leader at Instituto de Medicina Molecular João Lobo Antunes and Professor of Faculdade de Medicina of Universidade de Lisboa (iMM, FMUL; Portugal) and her team in collaboration with researchers from the University of Lancaster (UK), shows that the long-term use of either cannabis or cannabis-based drugs impairs memory.
HRL Laboratories publish the first study using closed-loop slow-wave transcranial alternating current stimulation (tACS) of the brain during sleep to increase human subjects' ability to generalize experience in a target detection task, improving overnight performance change for novel situations by about 48 percent. Developed for the Defense Advanced Research Project Agency (DARPA), the technique is for accelerating learning, memory, and skill acquisition.
Model system researchers have examined the factors that influence productive activity one year after traumatic brain injury (TBI).
Despite the popularity of wearable devices to track and measure health and sports performance, a new review highlights how surprisingly little we know we know about how well these sensors and machines work -- let alone whether they deliver useful information.
Individuals with DSL access tend to sleep 25 minutes less than their counterparts without DSL Internet. They are significantly less likely to sleep between seven and nine hours, the amount recommended by the scientific community, and are less likely to be satisfied with their sleep, Bocconi University's Francesco Billari and colleagues find. The effect is largely driven by individuals that face time constraints in the morning and by the use of electronic devices in the evening (not by their use throughout the day).
More than 90 percent of people caring for a family member with dementia experience poor sleep, according to new research by the University at Buffalo School of Nursing.
A study of fruit flies has identified a pathway in the brain that keeps the animals from falling asleep during the day. The research, published in eNeuro, may have implications for understanding the sleep/wake cycle in mammals, which shares similar features.
The neural link between depression and sleep problems has been identified for the first time in a new study by researchers at the University of Warwick (UK) and Fudan University (China).
Supplemental oxygen eliminates the rise in morning blood pressure experienced by obstructive sleep apnea (OSA) patients who stop using continuous positive airway pressure (CPAP), the standard treatment for OSA, according to new research published online in the American Thoracic Society's American Journal of Respiratory and Critical Care Medicine.