http://www.sott.net/article/228959-Religion-May-Cause-Brain-Atrophy
Related: agrégat 4Women's exercise linked to lower cognitive skill - health - 07 January 2011 WOMEN who habitually take strenuous exercise might be at risk of damaging their cognitive function later in life. Strenuous exercise is known to reduce oestrogen levels in women and girls. This can delay the start of menstruation, and can lead to irregular periods in adult women. Low levels of oestrogen in premenopausal women have been linked to impaired mental function in later life. Brain is not fully mature until 30s and 40s (PhysOrg.com) -- New research from the UK shows the brain continues to develop after childhood and puberty, and is not fully developed until people are well into their 30s and 40s. The findings contradict current theories that the brain matures much earlier. Professor Sarah-Jayne Blakemore, a neuroscientist with the Institute of Cognitive Neuroscience at University College London, said until around a decade ago many scientists had "pretty much assumed that the human brain stopped developing in early childhood," but recent research has found that many regions of the brain continue to develop for a long time afterwards.
And Their Fascinating History February 9, 2012 | Like this article? Join our email list: Stay up to date with the latest headlines via email. Want to get the latest on America's drug & rehab culture? Sign up for The Fix's newsletter here. Time on the Brain: How You Are Always Living In the Past, and Other Quirks of Perception I always knew we humans have a rather tenuous grip on the concept of time, but I never realized quite how tenuous it was until a couple of weeks ago, when I attended a conference on the nature of time organized by the Foundational Questions Institute. This meeting, even more than FQXi’s previous efforts, was a mashup of different disciplines: fundamental physics, philosophy, neuroscience, complexity theory. Crossing academic disciplines may be overrated, as physicist-blogger Sabine Hossenfelder has pointed out, but it sure is fun. Like Sabine, I spend my days thinking about planets, dark matter, black holes—they have become mundane to me. But brains—now there’s something exotic. So I sat rapt during the neuroscientists’ talks as they described how our minds perceive the past, present, and future.
Marijuana Growing Guide Free Library Marijuana Growing Guide Free Library helps everyone learn how to grow marijuana plant hydroponics. Welcome, the spirit is to help medicinal cannabis patients and horticulturalists grow the most potent marijuana plants legally possible. Growing marijuana indoors in your own space, greenhouse or outdoor garden is not overly difficult but attention to detail is needed. Our green team analyses online weed growing sites, phat magazines and communicates with real organic growers. You will find only the best online information on marijuana seeds, germination, marijuana plant sexing, marijuana growing equipment of today, hydroponic techniques, indoor cultivation, outdoor cultivation, troubleshooting plus a whole lot more.
Françoise Nielly - artiste Search 47.2x47.2 inches Artwork visible at: FRANCE This Is Your Brain On Caffeine Ever miss your daily cup of coffee and subsequently get a pounding headache? According to reports from consumers of coffee and other caffeinated products, caffeine withdrawal is often characterized by a headache, fatigue, feeling less alert, less energetic and experiencing difficulty concentrating. Caffeine withdrawal is at its worst between 24 to 48 hours and lasts up to a week. Researchers from the University of Vermont College of Medicine and Johns Hopkins School of Medicine sought to investigate the biological mechanisms of caffeine withdrawal in a paper published recently in the online edition of the scientific journal Psychopharmacology.
Why Intelligent People Use More Drugs The human consumption of psychoactive drugs , such as marijuana , cocaine , and heroin, is of even more recent historical origin than the human consumption of alcohol or tobacco, so the Hypothesis would predict that more intelligent people use more drugs more frequently than less intelligent individuals. The use of opium dates back to about 5,000 years ago, and the earliest reference to the pharmacological use of cannabis is in a book written in 2737 BC by the Chinese Emperor Shen Nung. Opium and cannabis are the only “natural” (agricultural) psychoactive drugs. Other psychoactive drugs are “chemical” (pharmacological); they require modern chemistry to manufacture, and are therefore of much more recent origin.
Dewey Decimal Classification System The Dewey Decimal Classification (DDC) system was conceived to accommodate the expansion and evolution of the body of human knowledge. That's why 23 unabridged print editions and 15 abridged editions over nearly 139 years, as well as multiple Web editions since 2000 have been published—to ensure that you have current tools to manage contemporary knowledge organization projects. The four-volume unabridged edition is published approximately every seven years, reflecting the time the Dewey editorial team needs to implement changes across the entire classification. The 23rd print edition, published in mid-2011, includes many new features that make the classification easier to use.
Why do You Turn Down the Radio When You’re Lost? You’re driving through suburbia one evening looking for the street where you’re supposed to have dinner at a friend’s new house. You slow down to a crawl, turn down the radio, stop talking, and stare at every sign. Why is that? Neither the radio nor talking affects your vision. Or do they? Scientists believe "magic" mushrooms could effectively treat depression After a brief spurt of interest in the late '60s, scientists in the drug development field abandoned research work on illicit drugs like LSD and "magic" mushrooms. But over the past few years a few bold investigators have been stepping back up to the plate, convinced that some outlawed active ingredients could offer new pathways to treating some common ailments. Enter Professor David Nutt, a prominent and controversial researcher in the U.K. who has just published a new paper asserting that psilocybin--the active ingredient in magic mushrooms--could help treat major depression. And he believes that LSD, ecstasy, mephedrone and cannabis are also worthy of legitimate scientific research, advocating that the time has come for the government to lift restrictions placed on the field. "I feel quite passionately that these drugs are profound drugs; they change the brain in a way that no other drugs do. Sign up for our FREE newsletter for more news like this sent to your inbox!
"Bayesian Data Analysis": page de l'auteur This is the home page for the book, Bayesian Data Analysis, by Andrew Gelman, John Carlin, Hal Stern, David Dunson, Aki Vehtari, and Donald Rubin. Teaching Bayesian data analysis Computing Stan (for posterior simulations) GPStuff (for fitting Gaussian processes; we used it to fit the birthday data shown on the book cover) Appendix C from the third edition of Bayesian Data Analysis. This appendix has an extended example of the use of Stan and R. How can I improve my short term memory? Q: How can I improve my memory? Is there a daily exercise I can do to improve it? A: The most important component of memory is attention. How Hallucinogens Play Their Mind-Bending Games: Scientific American - (Build 20100722150226) Zeroing in on a group of cells in a high layer of the cortex, a team of researchers from Mount Sinai School of Medicine, Columbia University and the New York State Psychiatric Institute may finally have found the cause of the swirling textures, blurry visions and signal-crossing synesthesia brought on by hallucinogenic drugs like LSD, peyote and "'shrooms." The group, which published its findings in this week's issue of Neuron, may have settled a long-simmering debate over how psychedelic drugs distort human perception. "There's this huge body of literature about these compounds, and I think this paper begins to nail down how the heck they're working in the brain," says Bryan Roth, a pharmacologist at the University of North Carolina at Chapel Hill. "It's not the end of the story, but I'd say it's the end of the beginning of the story." U.N.C., Chapel Hill's Roth says that the new study's localization of LSD's effect on the pyramidal neurons in level V makes sense.