Word: braines
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...hadn't heard a thing. But the test results suggested otherwise. On average, each person did slightly better at remembering the correct locations of the 25 objects whose related sounds had been cued during sleep than those of the other objects. The sounds appeared to have entered the sleeping brain and helped consolidate associated memories...
...nearly two centuries, researchers have suspected that sleep plays an important role in learning and memory. But it's only in the last decade that neuroscientists have discovered the most convincing evidence that memory is indeed dependent on sleep. The prevailing theory is that during deep sleep, the brain replays certain experiences from the day, which, in turn, strengthens the memory of what happened. It is thought that when it comes to factual memories, like names, faces, numbers or locations, memory consolidation happens only during deep sleep - a phase of non-rapid eye movement sleep. (The other broad type...
...minority of neuroscientists disagree that sleep actively aids memory, suggesting instead that consolidation of memories is merely a side effect of snoozing. They argue that the true purpose of sleep is to "cool down" the brain by resting the neurons that have been firing all day long. Paller's study lends support for the majority view: when sounds were played to the sleeping brain, the EEG patterns indicated activity - signaling that perhaps certain memories were being revisited - and this processing appeared to strengthen memories. "The meow somehow stimulated the association of the cat with a certain position on the screen...
Although researchers are still a long way from understanding exactly how sleep affects memory, they are certain that getting too little sleep is a detriment. A 2007 paper in Nature Neuroscience reported that in addition to consolidating recently learned memories, "sleep before learning is equally important in preparing the brain for next-day memory formation." The study found that people who had skipped a night's sleep fared worse at making new memories the next day, compared with those who had gotten a good night's sleep. Turns out, Mom's advice may have been right all along...
...social network of family and friends tend to bounce back faster. For Waddell, the treatment has been a combination of techniques designed to calm the storm of his wartime memories and his emotional responses to them. It involves everything from drugs to cathartic sessions of therapy to mapping his brain waves. It also helps for Waddell to vocalize his traumatic experiences, so he and Marshéle often speak to church and community groups about PTSD. It can take years before the symptoms start...