Image via Wikipedia University of California Irvine researchers have identified a novel mechanism in the brain that boosts memory. In collaboration with scientists at Germany’s University of Munster, the UCI team found that a small protein called neuropeptide S can strengthen and prolong memories of everything from negative events to simple objects. Tweet
Bright light therapy has significant effects on sleep disturbances associated with combat-related post-traumatic stress disorder, according to research presented at SLEEP 2010, the 24th annual meeting of the Associated Professional Sleep Societies.
A study in the journal Sleep shows that long-term alcoholism affects sleep even after long periods of abstinence, and the pattern of this effect is similar in both men and women. Alcoholics also had significantly more stage 1 non-rapid eye movement (NREM) sleep (8.5 percent in men, 6.3 percent in women) than controls (6.2 percent in men, 5.6 percent in women).
Experts have long suspected that part of the process of turning fleeting short-term memories into lasting long-term memories occurs during sleep. Now, researchers at the RIKEN-MIT Center for Neural Circuit Genetics of MIT’s Picower Institute for Learning and Memory have shown that mice prevented from “replaying” their waking experiences while asleep do not remember them as well as mice who are able to perform this function.
The work, which has a profound implication in the century-old search for the purpose of sleep, will be reported in the June 25, 2009 issue of Neuron.
Research on the sleeping brain has revealed some fascinating stage-dependent interactions between areas involved in formation and storage of long term memories. The study may also provide a framework for further understanding the role of sleep in memory.
Mammalian sleep occurs in two discrete stages, slow wave sleep and rapid eye movement sleep. One of the many ways in which SWS and REM sleep differ is in the level of synchronous firing in the hippocampus.
As the clock ticks down the hours to the start of ceremonies on the morning of September 11, 2008, commemorating the terror attacks of September 11, 2001, there is something we must all remember: it is okay to turn off the TV and not watch.
According to several studies done at three-month, six-months, and one-year following September 11, 2001, many people around the country had problems sleeping, especially in the first month following that tragic morning.
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As of May 2, 2009 at 9:47 p.m. (-0500) (ET), the U.S. population
was 306,340,710. Sleep researchers estimate approximately seven percent
of the population suffers from obstructive sleep apnea. Using that
estimate, there are potentially 21,443,850 apneics in the U.S.
~~ Apnea around the world ~~
As of May 2, 2009 at 9:47 p.m. (-0500) (ET), the world population
was 6,777,286,604. Sleep researchers estimate approximately seven percent
of the population suffers from obstructive sleep apnea. Using that
estimate, there are potentially 474,410,062 apneics in the world.
