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Dreaming but not deep sleep1/21/2024 ![]() However, the authors suggest that memory processing may actually be more complex, involving interactions between different sleep stages. Emotional processing and motor skill memory have been linked to REM sleep. For example, the stage of declarative memory, which is when memories of facts and events can be consciously recalled, has been linked to slow-wave (deep) sleep. Traditional views of memory formation during sleep rely on explanations that involve distinct sleep stages. This proposed way of looking at dreamless sleep could aid memory research, the treatment of sleep disorders and our understanding of sleep states, the researchers said. However, more research is needed to see whether skilled meditators actually experience more of this third category of dreamless sleep, they said. Studies have shown that some experienced meditators actually have brain rhythms that are distinct from those of nonmeditators - such as a higher level of activity called gamma-band activity, which has been linked to a number of different brain functions including attention and memory. They suggested that people who are skilled at meditation are more likely to experience this third state, but more research is needed before scientists can tell whether or not this is true. ![]() This state may be similar to the experiences of Indian and Tibetan meditators, the researchers said. The researchers said that this state not only involves dreamless sleep, but also a certain amount of conscious awareness on the part of the person that he or she is sleeping. The third category is a "selfless" state of sleep. ![]()
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