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Some electrophysiological studies have shown that neuronal activity patterns found during a learning task before sleep are reactivated in the brain during sleep. [86] This, along with the coincidence of active areas with areas responsible for memory have led to the theory that sleep might have some memory consolidation functions.
A new study in mice suggests the hypothesis that brain-cleansing occurs during sleep may be inaccurate. The findings show that mice cleaned more toxins and metabolites from the brain when they ...
Hauglund is the first author of another study, which appears in the journal Cell, and that, for the first time, describes the synchronized oscillations during sleep that power the brain’s ...
Sleep outside of the REM phase may allow enzymes to repair brain cell damage caused by free radicals. High metabolic activity while awake damages the enzymes themselves, preventing efficient repair. This study observed the first evidence of brain damage in rats as a direct result of sleep deprivation. [42]
Improvement to cognitive performance caused by exercise could last for 24 hours, a new study shows. Scientists also linked getting 6 or more hours of sleep to better memory test scores the next day.
By the time infants reach the age of two, their brain size has reached 90 percent of an adult-sized brain; [86] a majority of this brain growth has occurred during the period of life with the highest rate of sleep. The hours that children spend asleep influence their ability to perform on cognitive tasks.
During those stays, they were kept awake all night. During one night, participants were given 0.35 grams of creatine per kilogram of body weight; on another night, they were given a placebo.
Neurophysiological studies have indicated a relationship between increased P-wave density during post-training REM sleep and learning performance. [20] [21] Basically, the abundance of PGO waves translates into longer periods of REM sleep, which thereby allows the brain to have longer periods where neuronal connections are formed.