Keyword: memory
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[PRESS RELEASE, 10 November 2009] Researchers at Karolinska Institutet have discovered a mechanism that controls the brain's ability to create lasting memories. In experiments on genetically manipulated mice, they were able to switch on and off the animals' ability to form lasting memories by adding a substance to their drinking water. The findings, which are published in the scientific journal PNAS, are of potential significance to the future treatment of Alzheimer's and stroke. Lars Olson Photo: Camilla Svensk "We are constantly being swamped with sensory impression," says Professor Lars Olson, who led the study. "After a while, the brain must...
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Red-eye flights, all-night study sessions, and extra-inning playoff games all deprive us of sleep and can leave us forgetful the next day. Now scientists have discovered that lost sleep disrupts a specific molecule in the brain's memory circuitry, possibly leading to treatments for tired brains. Neuroscientists studying rodents and humans have found that sleep deprivation interrupts the storage of episodic memories: information about who, what, when, and where. To lay down these memories, neurons in our brains form new connections with other neurons or strengthen old ones. This rewiring process, which occurs over a period of hours, requires a rat's...
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Implant false memories by 'seizing control of circuits. Posted in Biology, 16th October 2009 13:43 GMT An alliance of boffins from Oxford University and Virginia, America say they have developed a technique for "writing directly to memory" in a living brain, "seizing control of brain circuits" to create a memory of an experience which had never actually happened. Thus far, according to the research, the technique works reliably only on flies. "Flies have the ability to learn, but the circuits that instruct memory formation were unknown," says Oxford insect-brain expert Gero Miesenböck. "We were able to pin the essential component...
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(July 20) - You probably recall little of your days in the womb, but a new study suggests that short-term memory may be present in fetuses at 30 weeks of age. Until a few decades ago, "people would say that the human fetus is a sort of black box," said Dr. Jan Nijhuis, a co-author of the study and an obstetrician at Maastricht University Medical Center in The Netherlands. Studies over the years have started to reveal more about the neurological development of humans before they are born, but researchers are still trying to figure out when memory begins and...
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They weigh less than 3 pounds, usually, and are perhaps 15 inches long. But they can remember. The unborn have memories, according to medical researchers who used sound and vibration stimulation, combined with sonography, to reveal that the human fetus displays short-term memory from at least 30 weeks gestation - or about two months before they are born.
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Fetuses found to have memories By Jennifer Harper July 16, 2009 They weigh less than 3 pounds, usually, and are perhaps 15 inches long. But they can remember. The unborn have memories, according to medical researchers who used sound and vibration stimulation, combined with sonography, to reveal that the human fetus displays short-term memory from at least 30 weeks gestation - or about two months before they are born. "In addition, results indicated that 34-week-old fetuses are able to store information and retrieve it four weeks later," said the research, which was released Wednesday. Scientists from the Department of Obstetrics...
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July 16, 2009 (LifeSiteNews.com) - 30-week-old babies in the womb already have short-term memory capabilities, a new study from the Netherlands, published in the July/August 2009 issue of the journal Child Development, has found.Researchers at Maastricht University Medical Centre and the University Medical Centre St. Radboud examined 93 healthy pregnant Dutch women and their unborn children, measuring changes in how the child responds to repeated stimulation. The children were tested at 30, 32, 34, and 36 weeks, and again at 38 weeks gestation. The study showed that the unborn children would initially respond to a "vibroacoustic" stimulus. The stimulus would...
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Researchers have found that taking a supplement of omega 3 for six months had a beneficial effect on people with age-related forgetfulness and loss of learning ability. They tested the affect of docosahexaenoic acid (DHA), which is most commonly found in fish oil, on 485 healthy people and found that memory and general brain function increased significantly. The research, based on volunteers with an average age of 70, showed taking 900mg capsules every day was the equivalent of turning back the clock three years, it was found. Now it is hoped that further studies could show that the fatty acid...
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The prevailing view among parents, the general public and mental health professionals that infants as young as six months old "do not remember" traumatic events that happen to them or to their loved ones has recently been disproved, a professor of infant mental health said at a Jerusalem conference on Sunday.... [snip] ... Most professionals and parents have pooh-poohed this idea because infants and young toddlers do not have the verbal ability to describe the trauma, but it nevertheless is stored in their brains, she asserted....[snip]... People are wrong to assume that when traumatized infants grow up and don't speak...
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SAN FRANCISCO — Maybe it’s time to retire the “senior moment.” These lapses of memory during everyday life — losing your keys or your train of thought — are thought to be more common in older people. Not so, researchers from the University of Waterloo in Canada report March 21 at the annual meeting of the Cognitive Neuroscience Society. Researcher Amanda Clark and her colleagues surveyed 30 adults younger than 25 and 24 people ages 60 to 80 to find out how many slips they make each day. The researchers also devised two lab tests to study attention. One involved...
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Enlarge ImageDéjà vu? Subjects were shown dozens of pictures like these and tested on whether they remembered them the next day.Credit: U. Rimmele et al., J. Neuroscience, 7 January 2009 The next time you spot an old friend from across the room, thank oxytocin. Researchers have shown that the brain hormone helps us sense whether a face is familiar. Oxytocin is a powerful social chemical. In voles, for example, the hormone is key to attachment behavior: Males with higher levels of oxytocin are more likely to be faithful to their mates. Humans also make use of the hormone. Oxytocin...
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A new study shows that sugar may not be so sweet for the brain – and may lead to memory problems.
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Toshiba announced today the expansion of their line up of NAND-flash-based solid state drives (SSD) with the industry's first 2.5-inch 512 GB SSD and a broad family of fast read/write SSD's based on 43 nanometer Multi-Level Cell NAND. In addition to the 2.5-inch, 512GB drive, the 43nm NAND SSD family also includes capacities of 64GB, 128GB, and 256GB, offered in 1.8-inch or 2.5-inch drive enclosures or as SSD Flash Modules. These 2nd generation SSD's offer increased capacity and performance for notebook computers. They utilize an advanced MLC controller that achieves higher read/write speeds, parallel data transfers and wear leveling to...
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ScienceDaily (Dec. 20, 2008) — It turns out there's a scientific reason why older people tend to see the past through rose-colored glasses. Medical researchers have identified brain activity that causes older adults to remember fewer negative events than their younger counterparts. Neuroscientists from Duke University Medical Center have discovered that older people use their brains differently than younger people when it comes to storing memories, particularly those associated with negative emotions.
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DRAM makers are facing one of the worst downturns in their history and governments around the world are lining up to help companies through the mess. Taiwan, Germany and South Korea all appear poised to offer some assistance to their DRAM chip makers. The need could not be greater. Long before the global financial crisis hit, DRAM makers suffered steep sales declines due to a glut of their chips. DRAM prices are now at rock bottom and companies are cutting back production instead of making more chips at such steep losses. The next few weeks will be the best time...
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He knew his name. That much he could remember. He knew that his father’s family came from Thibodaux, La., and his mother was from Ireland, and he knew about the 1929 stock market crash and World War II and life in the 1940s. But he could remember almost nothing after that. In 1953, he underwent an experimental brain operation in Hartford to correct a seizure disorder, only to emerge from it fundamentally and irreparably changed. He developed a syndrome neurologists call profound amnesia. He had lost the ability to form new memories. For the next 55 years, each time he...
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This memorial has been REDONE, to express the moment of that day and the memory of sacrifices made aboard the Naval carrier USS Forrestal - CVA-59 on July 29, 1967 in North Vietnam -- Gulf of Tonkin, South China Sea, at or about 10:50 AM. Once the fires were extinguished, the extent of the devastation was apparent. Most tragic was the loss to the crew, 134 had lost their lives, while an additional 64 were injured. This disaster remains the single worst loss of life on a Naval vessel since the USS Franklin (CV-13) was bombed in WWII while operating...
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MSNBC's Keith Olbermann was upset that they played video at the Republican convention that included the 9/11 attacks. Talk-radio host Mark Levin has a different opinion: This is the video that Keith Olbermann does not think we should see. Me.A friend of a friend took two photographs at 8:49 a.m., September 11, 2001, from about halfway up inisde the South Tower, 14 minutes before Islamic terrorists slammed United Airlines Flight 175 into it. Those photos are hard to look at. They show smoke pouring out of a gaping hole in the North Tower above, from where American Airlines Flight 11...
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Scientists have for the first time recorded individual brain cells in the act of summoning a spontaneous memory, revealing not only where a remembered experience is registered but also, in part, how the brain is able to recreate it. The recordings, taken from the brains of epilepsy patients being prepared for surgery, demonstrate that these spontaneous memories reside in some of the same neurons that fired most furiously when the recalled event had been experienced. Researchers had long theorized as much but until now had only indirect evidence. Experts said the study had all but closed the case: For the...
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WASHINGTON, Aug. 25, 2008 – Fifteen minutes before the Sept. 11, 2001, terrorist attack at the Pentagon, two sisters, both Defense Department employees, sat in the building’s five-sided center courtyard to talk about their family’s newest development. “We discussed her daughter’s first day in kindergarten,” said Kathy Dillaber, recalling the conversation with her “baby sister,” 41-year-old Patricia Mickley. As they spoke, the sisters watched an airplane streak above the open-air courtyard, and their discussion shifted to early reports that morning about a pair of planes crashing in New York City. About 10 minutes later they walked together toward their...
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LONDON (Reuters) - Eating tuna and other fatty fish may help prevent memory loss in addition to reducing the risk of stroke, Finnish researchers said on Monday. People who ate baked or broiled -- but not fried -- fish high in omega-3 fatty acids have been found to be less likely to have "silent" brain lesions that can cause memory loss and dementia and are linked to a higher risk of stroke, said Jyrki Virtanen of the University of Kuopio in Finland.
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A new drug halts the devastating progress of Alzheimer’s disease, say British scientists. It is said to be more than twice as effective as current treatments. A daily capsule of rember, as the drug is known, stops Alzheimer’s disease progressing by as much as 81 per cent, according to trial results. Patients with the brain disorder had no significant decline in their mental function over a 19-month period. ‘We appear to be bringing the worst affected parts of the brain functionally back to life,’ said Dr Claude Wischik, who led the research. It is the first time medication has been...
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Oops ! He forgot your birthday again. Well do not blame his memory for this innocent forgetfulness as the the reason behind it is down in the genes. While men may fail to match a woman's ability to remember the date of an anniversary, they are better at storing a seemingly endless cache of facts and figures and all this is because of genetic differences. Researchers at the Institute of Psychiatry, King's College London, have found that males use different genes from females when making the new connections in the brain that are needed to create long-term memories. They believe...
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A refreshing night's sleep may be the best way to boost memory, a study suggests. Researchers found sleep appears to have a dramatic impact on the way the brain functions the next day. It appears to strengthen connections between nerve cells in the brain - a process key to both learning and memory. The University of Geneva study was presented to a Federation of European Neuroscience Societies conference. The researchers studied a group of volunteers who were taught a new skill or shown images they would later have to remember. The skill tasks included trying to follow a moving dot...
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Eating high levels of some soy products - including tofu - may raise the risk of memory loss, research suggests.
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Low Levels Of Good Cholesterol Linked To Memory Loss, Dementia Risk ScienceDaily (July 1, 2008) — Low levels of high-density lipoproteins (HDL) -- the "good" cholesterol -- in middle age may increase the risk of memory loss and lead to dementia later in life, researchers reported in Arteriosclerosis, Thrombosis and Vascular Biology: Journal of the American Heart Association. Observing 3,673 participants (26.8 percent women) from the Whitehall II study, researchers found that falling levels of HDL cholesterol were predictors of declining memory by age 60. Whitehall II, which began in 1985, is long-term health examination of more than 10,000 British...
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Today is Memorial Day, May 30, 2008 and this video in my heart of hearts had to be “REDONE”, to express the moment of that day and the memory of sacrifices made aboard the Naval carrier USS Farrestal - CVA-59 on July 29, 1967 in North Vietnam – Gulf of Tonkin, South China Sea, at or about 10:50 AM. The results of the disaster were, fatalities 134 and as many as 70 or more men wounded. The song in this video is sung by the Five Blind Boys of Alabama, “I’m on the Battle Field’ and color pictures are contributed...
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This video is in memory of sacrifices made aboard the Naval carrier USS Farrestal, CVA-59 on July 29, 1967 in North Vietnam – Gulf of Tonkin, South China Sea, at or about 10:50 AM. The results of the disaster were, fatalities 134 and as many as 70 or more men wounded. The song in this video is sung by the Five Blind Boys of Alabama, “Down by the Riverside’ and color pictures are contributed by Bill Mason, PH2-US Navy. In the video is the actual voice of Captain John Beling, recorded during the beginning of the fires and disaster.
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THIS drug is peddled on every street corner in America, and is found in every country in the world. It is psychoactive, a stimulant and addictive. Users say that it increases alertness and focus, and reduces fatigue. But the high does not last and addicts must keep consuming it in increasing quantities. Put this way, sipping coffee sounds more like an abomination than the world's most accepted form of drug abuse. But centuries of familiarity have put people at their ease. In the coming years science is likely to create many novel drugs that boost memory, concentration and planning. These...
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The woman who can remember everything Last updated: 10:15 AM BST 09/05/2008 A woman who has baffled doctors with her ability to remember every detail of every day has broken her anonymity to speak of her condition. Jill Price, 42, can remember every part of her life since she was 14 but considers her ability a curse as she cannot switch off. She described her life as like a split-screen television, with one side showing what she is doing in the present, and the other showing the memories which she cannot hold back. Every detail about every day since 1980...
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SAN FRANCISCO — When David Bunnell, a magazine publisher who lives in Berkeley, Calif., went to a FedEx store to send a package a few years ago, he suddenly drew a blank as he was filling out the forms. “I couldn’t remember my address,” said Mr. Bunnell, 60, with a measure of horror in his voice. “I knew where I lived, and I knew how to get there, but I didn’t know what the address was.” Mr. Bunnell is among tens of millions of baby boomers who are encountering the signs, by turns amusing and disconcerting, that accompany the decline...
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A new study has found that it may be possible to train people to be more intelligent, increasing the brainpower they had at birth. Until now, it had been widely assumed that the kind of mental ability that allows us to solve new problems without having any relevant previous experience — what psychologists call fluid intelligence — is innate and cannot be taught (though people can raise their grades on tests of it by practicing). But in the new study, researchers describe a method for improving this skill, along with experiments to prove it works. The key, researchers found, was...
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PORTLAND, Ore. — The long-sought after memristor--the "missing link" in electronic circuit theory--has been invented by Hewlett Packard Senior Fellow R. Stanley Williams at HP Labs (Palo Alto, Calif.) Memristors--the fourth passive component type after resistors, capacitors and inductors--were postulated in a seminal 1971 paper in the IEEE Transactions on Circuit Theory by professor Leon Chua at the University of California (Berkeley), but their first realization was just announced today by HP. According to Williams and Chua, now virtually every electronics textbook will have to be revised to include the memristor and the new paradigm it represents for electronic...
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How much would you pay to have a small memory chip implanted in your brain if that chip would double the capacity of your short-term memory? Or guarantee that you would never again forget a face or a name? There’s good reason to consider such offers. Although our memories are sometimes spectacular — we are very good at recognizing photos, for example — our memory capacities are often disappointing. Faulty memories have been known to lead to erroneous eyewitness testimony (and false imprisonment), to marital friction (in the form of overlooked anniversaries) and even death (sky divers have been known...
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Getting Forgetful? Then Blueberries May Hold The Key ScienceDaily (Apr. 12, 2008) — If you are getting forgetful as you get older, then a research team from the University of Reading and the Peninsula Medical School in the Southwest of England may have good news for you They have found that phytochemical-rich foods, such as blueberries, are effective at reversing age-related deficits in memory, according to a study soon to be published in the science journal Free Radical Biology and Medicine. The researchers working at the Schools of Food Biosciences and Psychology in Reading and the Institute of Biomedical and...
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Computer memory that combines the high performance and reliability of flash with the low cost and high capacity of the hard disk drive could be closer than you think, thanks to a team of IBM scientists. IBM scientists unveiled a major breakthrough in their effort to build a new class of memory, nicknamed "racetrack." A diagram of the nanowire shows how an electric current is used to slide -- or "race" – tiny magnetic patterns around the nanowire "track," where the device can read and write data in less than a nanosecond. The racetrack memory would stand billions of nanowires,...
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ANAESTHETIC drugs could be used to numb a different sort of pain: flushing out harrowing memories before they take hold and post-traumatic stress disorder develops. Michael Alkire and Larry Cahill at the University of California in Irvine have discovered that anaesthetics can block the formation of memories associated with emotive images. "One popular misconception about anaesthesia is that unconsciousness occurs immediately," says Alkire. In fact, low doses of anaesthetic can leave patients conscious but impede memory, he says.
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(CBS) Human beings spend on average one third of their lives asleep. We know we need to sleep but most of us have never really given a whole lot of thought to why. Why do we spend seven or eight hours a night immobile and unconscious? What really happens inside our brains and bodies while we're sleeping? We've known the purpose of our other biological drives for hundreds of years: we eat to give our bodies energy, we drink to keep hydrated, we procreate to perpetuate the species - among other things. But what is the biological purpose of sleep?...
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WASHINGTON - Heading toward the bicentennial of Abraham Lincoln's birthday, President Bush on Sunday celebrated the nation's 16th president as a man of steadfast convictions and honorable ideals. "It's fitting that we honor Abe Lincoln," Bush said in the ornate East Room of the White House. "Of all the successors to George Washington, none had a bigger impact on the presidency and the country." Bush spoke in early tribute to the 199th anniversary of Lincoln's birthday. Lincoln was born Feb 12, 1809. On Tuesday, first lady Laura Bush will speak at Lincoln's birthplace of Hodgenville, Ky., as part of the...
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Intel and Micron Technology unveiled a high speed NAND flash memory technology that can greatly enhance the access and transfer of data in devices that use silicon for storage. The new technology – developed jointly by Intel and Micron and manufactured by the companies' NAND flash joint venture, IM Flash Technologies (IMFT) – is five times faster than conventional NAND, allowing data to be transferred in a fraction of the time for computing, video, photography and other computing applications. The new high speed NAND can reach speeds up to 200 megabytes per second (MB/s) for reading data and 100 MB/s...
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Most of the problem solving we do in order to get through a day involves the use of what's referred to as "working memory." it acts a bit like RAM; we store information we need for the task at hand temporarily, but don't necessarily commit it to permanent memory. A recent study has probed the qualities of visual working memory, and has come to the conclusion that we have a finite and well-defined capacity for visual items, a finding that may have far-reaching implications for one simple reason: that capacity may be what's stressed by IQ tests. The study appeared...
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When scientists found out that chimps had better memories than students, there were unkind comments about the calibre of the human competition they faced. But now an ape has gone one better, trouncing British memory champion Ben Pridmore. Ayumu, a seven-year-old male brought up in captivity in Japan, did three times as well as Mr Pridmore at a computer game which involved remembering the position of numbers on a screen. And that's no mean feat - the 30-year-old accountant from Derby is capable of memorising the order of a shuffled pack of cards in under 30 seconds.
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Lack Of Imagination In Older Adults Linked To Declining Memory ScienceDaily (Jan. 8, 2008) — Most children are able to imagine their future selves as astronauts, politicians or even superheroes; however, many older adults find it difficult to recollect past events, let alone generate new ones. A new Harvard University study reveals that the ability of older adults to form imaginary scenarios is linked to their ability to recall detailed memories. According to the study, episodic memory, which represents our personal memories of past experiences, "allows individuals to project themselves both backward and forward in subjective time." Therefore, in order...
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My husband, at 74, is the baby of his bridge group, which includes a woman of 85 and a man of 89. This challenging game demands an excellent memory (for bids, cards played, rules and so on) and an ability to think strategically and read subtle psychological cues. Never having had a head for cards, I continue to be amazed by the mental agility of these septua- and octogenarians. The brain, like every other part of the body, changes with age, and those changes can impede clear thinking and memory. Yet many older people seem to remain sharp as a...
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Young chimpanzee can recall number placement better than people can. A particularly cunning seven-year-old chimp named Ayumu has bested university students at a game of memory. He and two other young chimps recalled the placement of numbers flashed onto a computer screen faster and more accurately than humans. “It’s a very simple fact: chimpanzees are better than us — at this task,” says Tetsuro Matsuzawa, a primatologist at Kyoto University in Japan who led the study. The work doesn't mean that chimps are 'smarter' than humans, but rather they seem to be better at memorizing a snapshot view of their...
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Chimpanzees have an extraordinary photographic memory that is far superior to ours, research suggests. Young chimps outperformed university students in memory tests devised by Japanese scientists. The tasks involved remembering the location of numbers on a screen, and correctly recalling the sequence. The findings, published in Current Biology, suggest we may have under-estimated the intelligence of our closest living relatives. Until now, it had always been assumed that chimps could not match humans in memory and other mental skills. "There are still many people, including many biologists, who believe that humans are superior to chimpanzees in all cognitive functions," said...
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Memories help construct lives and life experiences—without them, living life would be nearly impossible. Alzheimer’s and Parkinson’s diseases are debilitating illnesses capable of ruining victims’ lives and inflicting pain and sadness on their families. Recent findings at UC Irvine show that the use of stem cells can reverse memory loss after brain injuries and diseases, such as Alzheimer’s. “This study can very well benefit people with diseases such as Alzheimer’s and Parkinson’s, as well as physical brain injuries and neuron loss, if it becomes transferable to humans,” said Debbie Morisette, a stereologist working on the study. “But as of right...
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Looking at the calendar this morning, I noticed an entry -in my late wife's handwriting-for tomorrow's date: USMC- Semper Fi.
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Your brain can distinguish between real and fake memories, even if you can’t. Tell the truth: our brain can sometimes reveal if our memories are real or false.stockbyteIt’s a common situation: you’re embroiled in an argument over a fact and you know for certain that you have the right answer. But when someone rushes to their laptop to google the correct answer, you discover that you were wrong. Whether in a fight with a spouse or giving testimony on the witness stand, it is clear that our memories are not always trustworthy. Now, researchers have found that although those vivid...
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The task looks as simple as a “Sesame Street” exercise. Study pairs of Easter eggs on a computer screen and memorize how the computer has arranged them: the aqua egg over the rainbow one, the paisley over the coral one — and there are just six eggs in all. Most people can study these pairs for about 20 minutes and ace a test on them, even a day later. But they’re much less accurate in choosing between two eggs that have not been directly compared: Aqua trumped rainbow but does that mean it trumps paisley? It’s hazy. It’s hazy, that...
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