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Tag: "wakefulness" at biology news

Wisconsin researchers identify sleep gene

...rophysiological changes occurring during sleep and wakefulness as in humans. "The electrical changes in humans look different that they do in flies because our brains are organized differently," Cirelli says. "But the EEGs showed electrophysiological changes signifying that the flies were asleep and awake." In...

Brain-mapping technique aids understanding of sleep, wakefulness

... acetylcholine. These cells are very active during wakefulness when an animal or human is aroused and attentive. Previous studies have shown that orexin neurons project to these cells, sending positive signals downstream to help keep them active. The new study, however, shows that these acetylcholine-producing n...

Unlike other mammals, newborn dolphins and orcas stay active 24/7 during first months of development

...ent advantages for newborn cetaceans: Movement and wakefulness reduce danger from predators, help maintain body temperature until mass and blubber insulation develop, allow frequent respiration at the surface, and facilitate rapid growth of brain and body and related behavioral development. "Somehow these seafa...

Studies suggest new brain protein may help in treating schizophrenia, insomnia and anxiety

...scovered and, paradoxically, induces both profound wakefulness and a less anxious state, may represent a novel target for the treatment of psychotic behavior and schizophrenia, according to new research presented at the 6th International Congress of Neuroendocrinology (ICN 2006). ICN 2006 is being held at the Da...

New mechanism explains glucose effect on wakefulness

...the basic energy molecule, glucose, regulates such wakefulness and other energy-related behaviors. Now, in an article in the June 1, 2006, Neuron, Denis Burdakov of the University of Manchester and his colleagues have pinpointed how glucose inhibits neurons that are key to regulating wakefulness. In the process...

Need to pull an all-nighter?

...aceutical promise in developing drugs that prolong wakefulness by curbing production of nitric oxide or scavenging the gas once it's produced. The opposite ?a sleeping pill made from nitric oxide donors -- would be much harder, he says, since these compounds would likely break down before ever reaching the brain...

Out-of-body experiences may be caused by arousal system disturbances in brain

...ce as it is to occur during the transition between wakefulness and sleep. Nelson suggests that phenomena in the b...f REM sleep elements during the transition between wakefulness and sleep. Sleep paralysis is a common form of REM intrusion, which can cause a condition of temp...

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