Everything about Sleep And Learning totally explained
Many competing theories have been advanced to discover the possible connections between
sleep and learning in
humans. One theory is that
sleep consolidates and optimizes the layout of
memories, though recent evidence suggests this may be restricted to explicit
procedural memories.
Increased learning
Popular sayings such as "sleep on it" or "consult the pillow" reflect the notion that remolded memories produce new creative associations in the morning, and that often performance improves after a time-interval that included sleep.
Many studies demonstrate that a healthy sleep produces a significant
learning dependent performance boost. Healthy sleep must include the appropriate sequence and proportion of
NREM and
REM phases, which play a different role in memory consolidation-optimization process. In
motor skill learning, an interval of sleep may be critical for the expression of performance gains; without sleep these gains will be delayed (
Korman et al, 2003). However, several studies show that, in some conditions, time after training, even without sleep, may suffice for attaining significant performance boosts (
Roth Ari-Even et al, 2005).
A study has also found that after sleep there's an increased
insight, that is, a sudden gain of explicit knowledge. Thus during sleep the representation of new memories are restructured.
Sleep in relation to school
Sleep has been directly linked to the grades of students. One in four U.S. high school students admit to falling asleep in class at least once a week.. Consequently, results have shown that those who sleep less do poorly. In the
United States sleep deprivation is common with students because almost all schools begin early in the morning and many of these students either choose to stay up awake late into the night or can't do otherwise due to
delayed sleep phase syndrome. As a result, students that should be getting between 8.5 and 9.25 hours of sleep are getting only 7 hours. Perhaps because of this sleep-deprivation, their grades lower and their concentration is impaired. (Roth Ari-Even et al, 2005).
Other theories
Other researchers' theories on additional functions of sleep differ significantly. One older idea is the
energy conservation theory. Others claim that REM sleep is needed to "refresh" the
brain after NREM phase, or that REM is needed to prevent stasis of fluids in the
eye. (Roth Ari-Even et al, 2005).
Further Information
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