Lack of Deep Sleep, Not Brain Aging, Drives Anxiety in Older Adults
A new study reveals that declining slow-wave sleep impairs overnight emotional regulation, pointing to a modifiable target for late-life anxiety.
Tag: NonREM
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Sleep-Like Brain Ripples Underlie Mind’s Wandering Thoughts
Researchers discovered that mind wandering is linked to a specific brain activity pattern that's frequently observed during sleep.
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Sexsomnia and Sleep Eating: Why Are They Still in the Dark?
Arousal disorders—such as sexsomnia and sleep eating—are yet to have the comprehensive treatment guidelines that are available for other sleep disorders like sleep apnea and insomnia.
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Pigeons Share Sleep Patterns and Dreaming Traits with Humans
A new study found that sleep patterns, including dreaming, in pigeons are remarkably similar to those in mammals.
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Junk Food May Impair Deep Sleep
Researchers investigated how diet impacts sleep by having study participants consume two different diets—one healthier than the other—in a randomized order.
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How Deep Sleep Can Protect Against Alzheimer’s Memory Loss
Sleep scientists describe how slow-wave sleep can act as a protective factor against memory decline in those with existing high amounts of Alzheimer’s disease pathology—a potentially significant advance that could help alleviate some of dementia’s most devastating outcomes.
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Sleep Spindles May Be Key to Reducing Anxiety
Researchers found that spindle rate frequency increased following exposure to stressful images, providing compelling evidence that stress was a contributing factor in spindle-specific sleep rhythm changes.
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Research Shows Link Between Tinnitus, Sleep
Is there a connection between sleep and tinnitus? These researchers at the University of Oxford think so.
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The Sleeping Brain is Like a Hydraulic Pump
High amplitude mechanical brain pulsations during deep sleep accelerate the clearance of brain waste, researchers from the University of Oulu in Finland found.
Read MoreHow People Use N1 Sleep to Solve Challenging Problems
A study reports that we have a period of creativity in the semilucid state that occurs as we begin to drift into sleep (sleep phase N1).
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Optimizing Sleep Spindle Detection May Ultimately Help ID Dementia
A new study could help improve automated methods for detecting sleep spindles and for correlating them with cognitive function.
Read MoreBrain Memory Signals Linked to Blood Sugar Levels
The impact of sleep disturbance on sharp wave ripples may provide a mechanistic link between poor sleep and high blood sugar levels seen in type 2 diabetes.
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Scientists Observe Vagus Nerve Stimulation Effect on Brain Activity During Sleep & Wakefulness
Vagal-evoked potentials were largest during a specific sleep stage called nonREM sleep, during which large, slow waves dominate the electrical activity of the brain.
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Pre- and Post-Epileptic Spasm Brain Resembles the NREM Sleep Brain on EEG
Acivity of neocortex pyramidal cells before and during a spasm closely mirror slow oscillation waves that are common during NREM sleep, with a slight twist.
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How Dreams Differ in REM Versus NonREM Sleep
Brazilian and South African researchers analyzed dream reports word by word using graph theory, not a semantic analysis.
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Cellular Energy Metabolite Decreases During Non-REM Sleep & Profoundly Decreases During REM, Finds Mouse Study
Researchers show a cortex-wide variation of cytosolic ATP levels in the cortical neurons depending on the sleep-wake states of animals.
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Why Little Mammals Sleep Longer
Why does the mouse sleep five times longer than the elephant? Scientist have developed quantitative models to explain sleep time differences.
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