A new collection of articles explores mapping brain overexcitability that underpins the dysregulation of vigilance, sleep-wake cycles, and validating effective biomarkers for Alzheimer's disease.
A new hypothesis suggests when people are awake during the biological circadian night there are neurophysiological changes in the brain that alters the way in which we interact with the world, especially when it comes to impulse control, information processing, and reward processing.
Children who sleep less than 9 hours per night have significant differences in brain regions associated with memory, intelligence, and well-being compared to their peers who sleep 9 or more hours per night. Less sleep in children was also associated with increased risks of depression, anxiety, and impulsive behaviors.
The activity of MCH neurons in the lateral hypothalamus during sleep recapitulates REM sleep effects on reducing drug-seeking behaviors.
A new pillow and mattress system stimulates the body to trigger sleepy feelings by using heating and cooling sensations. Researchers say the new system helps people fall asleep faster and improves the quality of overall sleep.
During REM sleep, the locus coeruleus stops releasing noradrenaline. By blocking the cascade, the association between memory and emotional response is broken. This may not occur so frequently in restless sleepers, resulting in rumination and PTSD-like symptoms. For those who usually sleep well, embarrassing feelings experienced at night may be reduced by morning.
Noradrenaline, a stress-related neurotransmitter, may cause you to wake at night but researchers say it's a normal part of a good night's sleep.
A study of the cerebral cortex discovered there is a robust response to sound during sleep that largely mirrored the brain's response during wakefulness. However, differences in brain waves that help the brain understand sound and anticipate what comes next is missing during sleep.
During sleep, the brain analyzes auditory input but is unable to focus on the sound or identify the noise; therefore no conscious awareness of the stimuli occurs.
Ripples occur in the human cortex, both while we are awake and asleep.
Study uncovers how splines, a newly identified pattern of rhythmic communication between the right and left hemispheres of the brain, improve brain communication as a result of dreaming and running.