Babies likely dream their first dreams in womb.Byline: ANI Washington, April 14 (ANI): German researchers have found that very immature sheep foetuses can enter a dreaming sleep-like state weeks before the first rapid eye movements rapid eye movement n. Abbr. REM The rapid periodic jerky movement of the eyes during certain stages of the sleep cycle when dreaming takes place. are seen. Mathematical analysis Analysis has its beginnings in the rigorous formulation of calculus. It is the branch of mathematics most explicitly concerned with the notion of a limit, whether the limit of a sequence or the limit of a function. carried out by mathematician Karin Schwab and neuroscientists Many famous neuroscientists are from the 20th and 21st century, as neuroscience is a fairly new science. However many anatomists, physiologist, and physicians are considered to be neuroscientists as well. at Friedrich Schiller “Schiller” redirects here. For other uses, see Schiller (disambiguation). Johann Christoph Friedrich von Schiller (Marbach am Neckar, November 10, 1759 – May 9, 1805 in Weimar) was a German poet, philosopher, historian, and dramatist. University in Jena provides a tool to better understand the purpose of sleep. It may also be helpful in studying how the brain develops, and in identifying vulnerable periods in brain development when damage could lead to disease later in life. The researchers point out that directly measuring the brain activity of a human foetus in the womb is impossible, and that whatever is known about the early sleep habits comes mostly from watching eye movements. The first rapid eye movements are seen around the seventh month of a foetus' development. For the current research, Schwab studied sheep, an animal that typically carries one or two foetuses similar in size and weight to a human foetus. The course of brain development is also fairly similar in humans and sheep, lasting about 280 days in humans and 150 days in sheep. The researchers recorded electrical activity in the brain of a 106-day-old developing sheep foetus directly, something that had never been done before. Schwab's team used sophisticated mathematical techniques for detecting patterns, and found cycles in the complexity of immature brain activity. Unlike sleep patterns in later stages of development, the cycles fluctuated every 5 to 10 minutes and changed slowly as the foetus grows. The researchers concede that it is difficult to imagine what the foetus experiences during such cycles in terms familiar to adults, but add that the patterns shed new light on the origins of sleep. "Sleep does not suddenly evolve from a resting brain. Sleep and sleep state changes are active regulated processes," says Schwab. The new findings are also consistent with other data that shows that the brain cells that generate sleep states mature long before the rest of the brain is developed enough to fall into REM sleep REM sleep n. A stage in the normal sleep cycle during which dreams occur and the body undergoes various physiological changes, including rapid eye movement, loss of reflexes, and increased pulse rate and brain activity. . Schwab says that a better understanding of brain development may provide clues about diseases later in life, like neurological disorders This is a list of major and frequently observed neurological disorders (e.g. Alzheimer's disease), symptoms (e.g.back pain), signs (e.g. aphasia) and syndromes (e.g. Aicardi syndrome). or crib death crib death n. See sudden infant death syndrome. crib death Sudden infant death syndrome, see SIDS . A research article on the mathematical analysis has been published in the journal Chaos. (ANI) Copyright 2009 Asian News International The Asian News International (ANI) agency provides multimedia news to China and 50 bureaus in India. It covers virtually all of South Asia since its foundation and presently claims, on its official website, to be the leading South Asia-wide news agency. (ANI) - All Rights Reserved. Provided by Syndigate.info an Albawaba.com company |
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