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Keyword: fmri

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  • Processed carbohydrates are addictive, brain study suggests

    06/30/2013 2:27:36 PM PDT · by neverdem · 40 replies
    CBS News ^ | June 27, 2013 | RYAN JASLOW
    Play CBS News Video People may joke they're addicted to desserts, but new brain imaging research shows there may be some truth to the statement.Researchers have found eating highly-processed carbohydrates like cakes, cookies and chips could affect pleasure centers in the brain, leading to serious cravings that might cause people to overeat.13 PhotosAre you a food addict? Take our online test "Beyond reward and craving, this part of the brain is also linked to substance abuse and dependence, which raises the question as to whether certain foods might be addictive," study author Dr. David Ludwig, director of the New...
  • First Physical Evidence of Gulf War Illness Discovered in Veterans' Brains

    03/20/2013 10:36:00 PM PDT · by Seizethecarp · 11 replies
    University Medical Center (GUMC) researchers for the first time have discovered that veterans who suffer from “Gulf War Illness” have physical changes in their brains that may account for pain from actions as simple as putting on a shirt. Brain scans of 31 veterans with the illness, compared to 20 control subjects, revealed anomalies in the bundles of axons, also known as nerve fibers, that connect brain areas involved in the processing and perception of pain and fatigue. The Georgetown findings, published online today in PLOS ONE, could provide insight into the mysterious medical symptoms reported by Gulf War veterans,...
  • Perspective: Brain scans need a rethink

    11/05/2012 7:51:16 PM PST · by neverdem · 9 replies
    NATURE ^ | 31 October 2012 | Ben Deen & Kevin Pelphrey
    One of the most popular and widely accepted theories on the cause of autism spectrum disorders attributes the condition to disrupted connectivity between different regions of the brain. This 'connectivity hypothesis' claims that the social and cognitive abnormalities in people with autism can be explained by a dearth of connections between distant regions of the brain1. Some flavours of this theory also predict more connections between nearby brain regions. Recent studies, however, have found that when a person moves their head while undergoing functional magnetic resonance imaging (fMRI) |[mdash]| a method that maps how different neuroanatomical structures of the brain...
  • Brain imaging: fMRI 2.0

    04/08/2012 11:11:33 AM PDT · by neverdem · 10 replies
    Nature News ^ | 04 April 2012 | Kerri Smith
    Functional magnetic resonance imaging is growing from showy adolescence into a workhorse of brain imaging. The blobs appeared 20 years ago. Two teams, one led by Seiji Ogawa at Bell Laboratories in Murray Hill, New Jersey, the other by Kenneth Kwong at Massachusetts General Hospital in Charlestown, slid a handful of volunteers into giant magnets. With their heads held still, the volunteers watched flashing lights or tensed their hands, while the research teams built the data flowing from the machines into grainy images showing parts of the brain illuminated as multicoloured blobs. The results showed that a technique called functional...
  • Brain scan foretells who will fold under pressure

    04/03/2012 1:07:31 AM PDT · by U-238 · 12 replies
    Science Daily ^ | 3/2/2012 | Laura Sanders
    As any high school senior staring down the SAT knows, when the stakes are high, some test-takers choke. A new study finds that activity in distinct parts of the brain can predict whether a person will remain cool or crumble under pressure. The results, presented April 1 at the annual meeting of the Cognitive Neuroscience Society, offer some great new clues that may help scientists understand how the brain copes with stressful situations, says psychologist Thomas Carr of Michigan State University in East Lansing. “Sometimes you come across a study you wish you'd done yourself,” he says “This is such...
  • Brain Imaging Reveals Moving Images

    09/23/2011 5:52:22 AM PDT · by Red Badger · 5 replies
    MIT Technology Review ^ | 22 Sep 2011 | By Erica Westly
    Scientists are a step closer to constructing a digital version of the human visual system. Researchers at the University of California, Berkeley, have developed an algorithm that can be applied to functional magnetic resonance imaging (fMRI) imagery to show a moving image a person is seeing. Neuroscientists have been using fMRI to study the human visual system for years, which involves measuring changes in blood oxygen levels in the brain. This works fine for studying how we see static images, but it falls short when it comes to moving imagery. Individual neuronal activity occurs over a much faster time scale,...
  • City living marks the brain - Neuroscientists study social risk factor for mental illness.

    06/22/2011 5:37:44 PM PDT · by neverdem · 27 replies
    Nature News ^ | 22 June 2011 | Alison Abbott
    Epidemiologists showed decades ago that people raised in cities are more prone to mental disorders than those raised in the countryside. But neuroscientists have avoided studying the connection, preferring to leave the disorderly realm of the social environment to social scientists. A paper in this issue of Nature represents a pioneering foray across that divide. Using functional brain imaging, a group led by Andreas Meyer-Lindenberg of the University of Heidelberg's Central Institute of Mental Health in Mannheim, Germany, showed that specific brain structures in people from the city and the countryside respond differently to social stress (see pages 452 and...
  • Tinted specs offer real migraine relief, says fMRI study

    05/26/2011 6:56:46 AM PDT · by decimon · 17 replies
    SAGE Publications ^ | May 26, 2011 | Unknown
    Los Angeles, CA (May 26, 2011) – Precision tinted lenses have been used widely to reduce visual perceptual distortions in poor readers, and are increasingly used for migraine sufferers, but until now the science behind these effects has been unclear. Now research published in the journal Cephalalgia, published by SAGE, uses functional magnetic resonance imaging (fMRI) for the first time to suggest a neurological basis for these visual remedies. The new research shows how coloured glasses tuned to each migraine sufferer work by normalizing activity in the brain. The researchers saw specific abnormal brain activity (known as hyperactivation) when migraine...
  • Major advance in MRI allows much faster brain scans

    01/05/2011 8:37:38 PM PST · by decimon · 5 replies
    University of California - Berkeley ^ | January 5, 2011 | Unknown
    2 acceleration methods make scanning more than 7 times fasterAn international team of physicists and neuroscientists has reported a breakthrough in magnetic resonance imaging that allows brain scans more than seven times faster than currently possible. In a paper that appeared Dec. 20 in the journal PLoS ONE, a University of California, Berkeley, physicist and colleagues from the University of Minnesota and Oxford University in the United Kingdom describe two improvements that allow full three-dimensional brain scans in less than half a second, instead of the typical 2 to 3 seconds. "When we made the first images, it was unbelievable...
  • Scientists offer compelling images of Gulf War illness - Depicting brain damage, scans...

    04/09/2010 1:43:52 PM PDT · by neverdem · 11 replies · 703+ views
    Science News ^ | March 9th, 2010 | Janet Raloff
    Depicting brain damage, scans distinguish between a trio of syndromes, researchers say SALT LAKE CITY Nearly two decades after vets began returning from the Middle East complaining of Gulf War Syndrome, the federal government has yet to formally accept that their vague jumble of symptoms constitutes a legitimate illness. Here, at the Society of Toxicology annual meeting, yesterday, researchers rolled out a host of brain images – various types of magnetic-resonance scans and brain-wave measurements – that they say graphically and unambiguously depict Gulf War Syndrome. Or syndromes. Because Robert Haley of the University of Texas Southwestern Medical Center in...
  • Brain scan can read people's thoughts: researchers

    03/12/2010 7:11:02 PM PST · by neverdem · 17 replies · 621+ views
    AFP ^ | Mar 11, 2010 | NA
    WASHINGTON (AFP) – A scan of brain activity can effectively read a person's mind, researchers said Thursday. British scientists from University College London found they could differentiate brain activity linked to different memories and thereby identify thought patterns by using functional magnetic resonance imaging (fMRI). The evidence suggests researchers can tell which memory of a past event a person is recalling from the pattern of their brain activity alone. "We've been able to look at brain activity for a specific episodic memory -- to look at actual memory traces," said senior author of the study, Eleanor Maguire. "We found that...
  • Brain Imaging Sheds Light on Social Woes Related to Autism

    12/19/2009 9:28:01 PM PST · by neverdem · 14 replies · 1,094+ views
    HealthDay News ^ | Dec 18, 2009 | NA
    FRIDAY, Dec. 18 (HealthDay News) -- The brains of autistic people are less active than expected when they're engaged in self-reflective thought, a finding that helps explain autism-related social difficulties, say British researchers. Using functional MRI, they measured the brain activity of 66 males, half of whom had autism, while they were asked questions about their own or the Queen's thoughts, opinions,preferences, or physical characteristics. The researchers were particularly interested in an area of the brain called the ventromedial prefrontal cortex, which is known to be active when people think about themselves. In non-autistic volunteers, this part of the brain...
  • Neurons play Simon Says - New research uncovers evidence for mirror neurons in humans

    08/16/2009 7:30:43 PM PDT · by neverdem · 2 replies · 356+ views
    Science News ^ | August 11th, 2009 | Tina Hesman Saey
    Human see. Human do. As with monkeys, it’s apparently the same for some nerve cells in the brain. Macaque monkeys have specialized brain cells — called mirror neurons — that activate when a monkey performs an action involving an object, such as picking up a grape, or when watching someone else do the same task. The discovery of these neurons in 1996 led to speculation that they could be involved in everything from simulating others’ actions to language development to autism. There was only one problem: no one had definite proof that such cells exist in humans. Now a new...
  • Brain imaging measures more than we think - Anticipatory brain mechanism may be...

    01/22/2009 3:50:57 AM PST · by neverdem · 7 replies · 862+ views
    Nature News ^ | 21 January 2009 | Kerri Smith
    Anticipatory brain mechanism may be complicating MRI studies. Blood vessel activation in the brain. The dark central area is the response to a visual stimulus.Y. Sirotin & A. Das Popular brain-imaging techniques may be painting a misleading picture of brain activity, according to a new study.Scientists using techniques such as functional magnetic resonance imaging (fMRI) make the assumption that blood flow into a particular brain region is directly linked to the amount of activity in the cells of that region. This is because active cells need more oxygen, and blood ferries it to them.But a study by Aniruddha Das and...
  • Rice psychologist identifies area of brain key to choosing words

    12/24/2008 11:41:43 AM PST · by CE2949BB · 7 replies · 423+ views
    Science Codex ^ | December 24, 2008
    New research by a Rice University psychologist clearly identifies the parts of the brain involved in the process of choosing appropriate words during speech. The study, published in the current issue of the Proceedings of the National Academy of Sciences, could help researchers better understand the speech problems that stroke patients experience.
  • Aging Brains Allow Negative Memories To Fade

    12/23/2008 4:21:44 AM PST · by CE2949BB · 19 replies · 618+ views
    Science Daily ^ | Dec. 20, 2008
    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.
  • Scientists extract images directly from brain

    12/12/2008 9:57:49 AM PST · by LibWhacker · 70 replies · 1,419+ views
    PinkTentacle ^ | 12/12/08
    Researchers from Japan’s ATR Computational Neuroscience Laboratories have developed new brain analysis technology that can reconstruct the images inside a person’s mind and display them on a computer monitor, it was announced on December 11. According to the researchers, further development of the technology may soon make it possible to view other people’s dreams while they sleep. The scientists were able to reconstruct various images viewed by a person by analyzing changes in their cerebral blood flow. Using a functional magnetic resonance imaging (fMRI) machine, the researchers first mapped the blood flow changes that occurred in the cerebral visual cortex...
  • Deep brain mapping to isolate evidence of Gulf War syndrome

    11/19/2008 10:56:09 PM PST · by neverdem · 4 replies · 272+ views
    Researchers at Southern Methodist University in Dallas are pioneering the use of spatial statistical modeling to analyze brain scan data from Persian Gulf War veterans, aiming to pinpoint specific areas of the their brains affected by Gulf War Syndrome. Richard Gunst, Wayne Woodward and William Schucany, professors in SMU's Statistical Science Department, are collaborating with imaging specialists at UT Southwestern Medical Center to compare brain scans of people suffering from the syndrome with those of a healthy control group. The SMU team is working with renowned UTSW epidemiologist Dr. Robert Haley, one of the foremost experts on the syndrome. A...
  • 'Faulty' brain connections may be responsible for social impairments in autism

    06/13/2008 11:30:51 PM PDT · by neverdem · 11 replies · 126+ views
    New evidence shows that the brains of adults with autism are "wired" differently from people without the disorder, and this abnormal pattern of connectivity may be responsible for the social impairments that are characteristic of autism. Using functional magnetic resonance imaging, a team of researchers affiliated with the University of Washington's Autism Center also found that the most severely socially impaired subjects in the study exhibited the most abnormal pattern of connectivity among a network of brain regions involved in face processing. "This study shows that these brain regions are failing to work together efficiently," said Natalia Kleinhans, a research...
  • Mind reading by MRI scan raises 'mental privacy' issue

    06/09/2008 9:32:18 AM PDT · by BGHater · 12 replies · 178+ views
    Telegraph ^ | 09 June 2008 | Roger Highfield
    Employers, the military and intelligence services may soon be using computerised mind-reading techniques and there is a need for a public debate about "mental privacy," a leading neuroscientist said yesterday. At the Cheltenham Science Festival, backed by The Daily Telegraph, Prof Geraint Rees of University College London said that, although hospital patients and experimental volunteers are protected, there is a need for debate about, for example, whether employers could use mind reading methods to decode brain activity to screen job applicants. Another possibility raised by studies of how the brain encodes memories and other information is that these methods could...
  • Brain's Gray Cells Appear To Be Changed By Trauma Of Major Events Like 9/11 Attack, Study Suggests

    06/04/2008 7:44:22 PM PDT · by neverdem · 10 replies · 113+ views
    ScienceDaily ^ | Jun. 4, 2008 | Sheri Hall
    enlarge Magnetic resonance imaging of the brains of healthy adults more than three years after Sept. 11, 2001, shows areas that have less gray matter volume in those who were near ground zero on 9/11, compared with those who were much farther away. This is three views of the brain areas that have lower gray matter volume in the 9/11-exposed group. Notably, all of these areas (which show up brighter in this image) are associated with the processing of emotion. (Credit: Image courtesy of Cornell University) ScienceDaily (Jun. 4, 2008) — Healthy adults who were close to the World Trade...
  • The Neurochemistry of Forgiving and Forgetting

    05/29/2008 10:41:12 PM PDT · by neverdem · 12 replies · 242+ views
    ScienceNOW Daily News ^ | 21 May 2008 | Steve Mitchell
    Enlarge ImageBrain trust. The hormone oxytocin may spur us to trust others even when they betray us by suppressing activity in the dorsal striatum (top, red regions) and amygdala (bottom).Credit: Thomas Baumgartner/University of Zürich Trust forms the foundation of healthy relationships, and now scientists are zeroing in on how the feeling is triggered by chemicals in the brain. A new study shows that the hormone oxytocin may spur us to trust others even after they have betrayed us by suppressing a region of the brain that signals fear. The findings could lead to a better understanding of social phobias...
  • Justice In The Brain: Equity And Efficiency Are Encoded Differently

    05/09/2008 9:13:03 PM PDT · by blam · 4 replies · 132+ views
    Science Daily ^ | 5-10-2008 | University of Illinois at Urbana-Champaign.
    The study sought to shed light on the neurological underpinnings of moral decision-making, said Ming Hsu, a fellow at the U. of I.'s Beckman Institute and co-principal investigator. (Credit: Photo by L. Brian Stauffer) ScienceDaily (May 10, 2008) — Which is better, giving more food to a few hungry people or letting some food go to waste so that everyone gets a share" A study appearing in Science finds that most people choose the latter, and that the brain responds in unique ways to inefficiency and inequity. The study, by researchers at the University of Illinois and the California Institute...
  • Lost in Translation (Chinese and English speaking dyslexics have differences in brain anatomy.)

    04/11/2008 2:06:32 AM PDT · by neverdem · 18 replies · 93+ views
    ScienceNOW Daily News ^ | 8 April 2008 | Constance Holden
    All dyslexics are not alike. According to new research, Chinese- and English-speaking people with the disorder have impairments in different regions of their brains. The findings shed light on the neurological basis of dyslexia and reveal fundamental differences in how brains process the two languages. Dyslexics, about 5% to 10% of the population in both the United States and China, have trouble making the connection between the sight and sound of a word. In English, this results in word distortions or transpositions of letters. "Dyslexia," for example, might be read as "Lysdexia." In Chinese, the problem can affect how a...
  • The Theory of Moral Neuroscience

    11/22/2007 11:04:02 PM PST · by neverdem · 36 replies · 210+ views
    Reason ^ | November 21, 2007 | Ronald Bailey
    Modern brain science is confirming an 18th century philosopher's moral theories"As we have no immediate experience of what other men feel, we can form no idea of the manner in which they are affected, but by conceiving what we ourselves should feel in the like situation," observed British philosopher and economist Adam Smith in the first chapter of his magisterial The Theory of Moral Sentiments (1759). "Whatever is the passion which arises from any object in the person principally concerned, an analogous emotion springs up, at the thought of his situation, in the breast of every attentive spectator." Smith's argument...
  • This Is Your Brain on Politics

    11/10/2007 9:14:47 PM PST · by neverdem · 19 replies · 124+ views
    NY Times ^ | November 11, 2007 | Op-Ed Contributors
    IN anticipation of the 2008 presidential election, we used functional magnetic resonance imaging to watch the brains of a group of swing voters as they responded to the leading presidential candidates. Our results reveal some voter impressions on which this election may well turn. Our 20 subjects — registered voters who stated that they were open to choosing a candidate from either party next November — included 10 men and 10 women. In late summer, we asked them to answer a list of questions about their political preferences, then observed their brain activity for nearly an hour in the scanner...
  • Thought Police: How Brain Scans Could Invade Your Private Life (Machines Read Your Mind)

    11/07/2007 6:30:31 PM PST · by Recovering_Democrat · 28 replies · 75+ views
    Popular Mechanics ^ | November 2007 | Jeff Wise
    Frank Tong is peering into another man’s mind...On the other side of a plate-glass window, an undergraduate lies immobile, his legs protruding from a functional magnetic resonance imaging (fMRI) scanner. A display unit above the young man’s eyes flashes a picture of a pigeon or a penguin—at this point Tong doesn’t know which.... On Tong’s screens a series of images appear: black-and-white cross sections of the living brain...Tong extracts the data from the scanner, takes it back to his lab and runs it through his processing software. After several hours he has a prediction: The test subject was looking...
  • Taxes a Pleasure? Check the Brain Scan

    06/20/2007 12:41:26 AM PDT · by neverdem · 11 replies · 413+ views
    NY Times ^ | June 19, 2007 | JOHN TIERNEY
    The University of Oregon announced a new piece of research last week with a startling headline: “Paying taxes, according to the brain, can bring satisfaction.” Could this be true? The research is in the new issue of Science, so it’s got the right pedigree, but still. How could politicians have gotten it so wrong? Even the most liberal Democratic candidates never imagined a lot of voters whistling as they merrily write out checks to the I.R.S. Before any campaign strategists start poring over brain-scan data in the paper, let me temper the happy news. First, this study did not exactly...
  • Don't Get Hysterical: New Research Proves Reality of Mental Block on Sensation

    12/13/2006 1:00:47 PM PST · by neverdem · 6 replies · 245+ views
    Scientific American ^ | December 12, 2006 | David Biello
    Magnetic brain scans reveal patients are not imagining numbness that conventional diagnosis cannot pin down. Is a person hysterical if he or she complains of numbness in a limb but conventional tests reveal no underlying cause? A new study argues yes. While the term hysteria has fallen out of favor--replaced by the more reasonable sounding "conversion disorder," after Freud's explanation of such symptoms as the conversion of intolerable emotional impulses into physical manifestations--the condition has not disappeared. Recent fMRI scans of three women insisting they had no feeling in either a hand or a foot revealed that their brains really...
  • Asleep at the Memory Wheel

    11/01/2006 10:57:57 PM PST · by neverdem · 381+ views
    ScienceNOW Daily News ^ | 18 October 2006 | Greg Miller
    ATLANTA, GEORGIA--Going a night without sleep may cause your hippocampus to go on strike. A new study has caught this crucial memory-encoding brain region slacking off in college students the day after they've pulled an all-nighter. The study is one of the first to investigate how sleep deprivation interferes with memory mechanisms in the human brain. Neuroscientist Matthew Walker of Harvard University and his colleagues paid 10 undergraduate students to forgo a night's sleep. The next day, the students viewed a series of 30 words, and two days later--after having two nights to catch up on their sleep--the students returned...
  • Mental Activity Seen in a Brain Gravely Injured

    09/07/2006 9:05:48 PM PDT · by neverdem · 28 replies · 999+ views
    NY Times ^ | September 8, 2006 | BENEDICT CAREY
    A severely brain-damaged woman in an unresponsive, vegetative state showed clear signs on brain imaging tests that she was aware of herself and her surroundings, researchers are reporting today, in a finding that could have far-reaching consequences for how unconscious patients are cared for and how their conditions are diagnosed. In response to commands, the patient’s brain flared with activity, lighting the same language and movement-planning regions that are active when healthy people hear the commands. Previous studies had found similar activity in partly conscious patients, who occasionally respond to commands, but never before in someone who was totally unresponsive....
  • Brain Scans As Lie Detectors?

    01/28/2006 3:05:18 PM PST · by Indy Pendance · 11 replies · 409+ views
    AP ^ | 1-28-06 | MALCOLM RITTER
    CHARLESTON, S.C. - Picture this: Your boss is threatening to fire you because he thinks you stole company property. He doesn't believe your denials. Your lawyer suggests you deny it one more time — in a brain scanner that will show you're telling the truth. Wacky? Science fiction? It might happen this summer. Just the other day I lay flat on my back as a scanner probed the tiniest crevices of my brain and a computer screen asked, "Did you take the watch?" The lab I was visiting recently reported catching lies with 90 percent accuracy. And an entrepreneur in...
  • Can brain say if you're lying?

    01/29/2006 10:11:30 AM PST · by neverdem · 24 replies · 574+ views
    The Seattle Times ^ | January 29, 2006 | Malcolm Ritter
    Associated Press CHARLESTON, S.C. — Picture this: Your boss is threatening to fire you because he thinks you stole company property. He doesn't believe your denials. Your lawyer suggests you deny it one more time, in a brain scanner that will show you're telling the truth. Wacky? Science fiction? It might happen this summer. Just the other day I lay flat on my back as a scanner probed the tiniest crevices of my brain and a computer screen asked, "Did you take the watch?" And two outfits, Cephos and No Lie MRI, say they'll start offering brain scans for lie...
  • NMR Walks on the Wild Side

    01/27/2006 1:21:11 AM PST · by neverdem · 7 replies · 313+ views
    ScienceNOW Daily News ^ | 23 January 2006 | Robert F. Service
    Following the lead of astronomers who build their telescopes on remote mountaintops, German researchers have taken to the woods to generate ultrahigh-precision chemical measurements. By fleeing the magnetic interference common to civilization, a team at Forschungszentrum Jülich and Aachen University has devised a low-tech version of nuclear magnetic resonance (NMR) spectroscopy that can outperform multimillion-dollar lab instruments. The tabletop-sized device could hold the key to a new low-cost version of NMR spectroscopy. NMR works because some atomic nuclei behave like tiny bar magnets. In typical NMR experiments, researchers place a chemical sample at the center of a giant high-field superconducting...
  • A Shocker: Partisan Thought Is Unconscious

    01/26/2006 8:02:40 PM PST · by neverdem · 19 replies · 739+ views
    NY Times ^ | January 24, 2006 | BENEDICT CAREY
    Liberals and conservatives can become equally bug-eyed and irrational when talking politics, especially when they are on the defensive. Using M.R.I. scanners, neuroscientists have now tracked what happens in the politically partisan brain when it tries to digest damning facts about favored candidates or criticisms of them. The process is almost entirely emotional and unconscious, the researchers report, and there are flares of activity in the brain's pleasure centers when unwelcome information is being rejected. "Everything we know about cognition suggests that, when faced with a contradiction, we use the rational regions of our brain to think about it, but...
  • Researchers Know What You Were About To Say; fMRI Used To Detect Memory Storage And Retrieval

    12/26/2005 8:14:02 PM PST · by neverdem · 12 replies · 242+ views
    University of Pennsylvania via ScienceDaily.com ^ | 2005-12-25 | Sean Polyn, Vaidehi S. Natu & Jonathan D. Cohen
    Using functional magnetic resonance imaging, or fMRI, researchers at the University of Pennsylvania and Princeton University have provided evidence that the act of recalling a memory is a bit like mental time travel. Their study, presented in the Dec. 23 edition of the journal Science, demonstrates that the same areas of the brain that are active during an event are activated when a person attempts to recall that event -- seconds before the memory surfaces. "This study shows that, as you search for memories of a particular event, your brain state progressively comes to resemble the state it was in...
  • This is Your Brain on Politics

    01/17/2005 9:27:05 PM PST · by neverdem · 38 replies · 1,063+ views
    NY Times ^ | January 18, 2005 | JOSHUA FREEDMAN
    GUEST OP-ED CONTRIBUTOR Los Angeles — PRESIDENT BUSH begins his second term this week as the leader of a nation that appears to be sharply divided. Since the election, there's been endless discussion about the growing gap between "red" and "blue" America. When former President Bill Clinton said a few months ago that he was probably the only person in America who liked both Mr. Bush and Senator John Kerry, it seemed it might be true. Yet, surprisingly, recent neuroscience research suggests that Democrats and Republicans are not nearly as far apart as they seem. In fact, there is empirical...
  • Brain scan 'identifies race bias among white people'

    11/16/2003 8:44:13 AM PST · by solitas · 166 replies · 1,225+ views
    Ananova ^ | 16 NOV 2003
    A brain scan that can apparently root out racists has been developed by scientists. The technique was used on white volunteers shown photographs of black individuals. In those with racist tendencies, a surge of activity was seen in part of the brain that controls thoughts and behaviour. Scientists believe this reflected volunteers' attempts to to curb their latent racism. After interacting with real black individuals, the same group performed poorly in a task designed to test mental resources. The American researchers concluded that harbouring racial prejudice, even unintentionally, stirred up an inner struggle that exhausted the brain. Dr Jennifer Richeson,...