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Nature or Nurture-Are You Who Your Brain Chemistry Says You Are?
Researchers using positron emission tomography (PET) have validated a long-held theory that individual personality traits-particularly reward dependency-are connected to brain chemistry, a finding that has implications for better understanding and treating substance abuse and other addictive... view more (2008-08-13)

PET scans may help assess presence of brain plaques related to Alzheimer's disease
A type of positron emission tomography (PET) scanning may be useful in a non-invasive assessment of the formation of Alzheimer's disease-related plaques in the brain, according to small study posted online today that will appear in the October 2008 print issue of Archives of Neurology, one of the... view more (2008-08-12)

Sound adds speed to visual perception
The traditional view of individual brain areas involved in perception of different sensory stimuli-i.e., one brain region involved in hearing and another involved in seeing-has been thrown into doubt in recent years.   view more (2008-08-12)

Childhood brain tumor traced to normal stem cells gone bad
An aggressive childhood brain tumor known as medulloblastoma originates in normal brain "stem" cells that turn malignant when acted on by a known mutant, cancer-causing oncogene, say researchers from Dana-Farber Cancer Institute and the University of California, San Francisco (UCSF).   view more (2008-08-12)

New insight into most common forebrain malformation
St. Jude Children's Research Hospital scientists have identified one of the molecular mechanisms underlying the genetic brain malformation called holoprosencephaly (HPE). The findings not only yield insights into the most common developmental malformation of the anterior brain and face in newborns,... view more (2008-08-12)

CSHL neuroscientists glimpse how the brain decides what to believe
It has probably happened to everyone at one time or another. You're driving to a restaurant for the very first time. At a crossroads, you make a turn. You drive for several minutes, and then several minutes more. Nothing in sight. The disturbing thought creeps into your mind: "I should be... view more (2008-08-12)

Gene's newly explained effect on height may change tumor disorder treatment
A mutation that causes a childhood tumor syndrome also impairs growth hormone secretion, researchers at Washington University School of Medicine in St. Louis have found.   view more (2008-08-12)

Unlocking mystery of why dopamine freezes Parkinson's patients
Parkinson's disease and drug addiction are polar opposite diseases, but both depend upon dopamine in the brain. Parkinson's patients don't have enough of it; drug addicts get too much of it. Although the importance of dopamine in these disorders has been well known, the way it works has been a... view more (2008-08-11)

Researchers block damage to fetal brain following maternal alcohol consumption
In a study on fetal alcohol syndrome, researchers were able to prevent the damage that alcohol causes to cells in a key area of the fetal brain by blocking acid sensitive potassium channels and preventing the acidic environment that alcohol produces.   view more (2008-08-11)

New step forward in search for solution to infection puzzle
Scientists at the University of York have helped to reveal more about the way bacteria can attach to human tissues.    view more (2008-08-07)

Caltech neurobiologists discover individuals who 'hear' movement
Individuals with synesthesia perceive the world in a different way from the rest of us. Because their senses are cross-activated, some synesthetes perceive numbers or letters as having colors or days of the week as possessing personalities, even as they function normally in the world.   view more (2008-08-07)

Study finds connections between genetics, brain activity and preference
A team of researchers from Massachusetts General Hospital (MGH) has used brain imaging, genetics and experimental psychology techniques to identify a connection between brain reward circuitry, a behavioral measurement of preference and a gene variant that appears to influence both.   view more (2008-08-07)

When neurons fire up: Study sheds light on rhythms of the brain
In our brains, groups of neurons fire up simultaneously for just milliseconds at a time, in random rhythms, similar to twinkling lightning bugs in our backyards. New research from neuroscientists at Indiana University and the University of Montreal provides a model -- a rhyme and reason -- for this... view more (2008-08-06)

Research reveals why some smokers become addicted with their first cigarette
New research from The University of Western Ontario reveals how the brain processes the 'rewarding' and addictive properties of nicotine, providing a better understanding of why some people seemingly become hooked with their first smoke.   view more (2008-08-06)

Context and personality key in understanding responses to emotional facial expressions
It is well appreciated that facial expressions play a major role in non-verbal social communication among humans and other primates, because faces provide rapid access to information about the identity as well as the internal states and intentions of others.   view more (2008-08-06)

Remedial Instruction Rewires Dyslexic Brains, Provides Lasting Results, Carnegie Mellon Study Shows
A new Carnegie Mellon University brain imaging study of dyslexic students and other poor readers shows that the brain can permanently rewire itself and overcome reading deficits, if students are given 100 hours of intensive remedial instruction.   view more (2008-08-06)

Whom do we fear or trust?
A pair of Princeton psychology researchers has developed a computer program that allows scientists to analyze better than ever before what it is about certain human faces that makes them look either trustworthy or fearsome.   view more (2008-08-06)

Human brains pay a price for being big
Metabolic changes responsible for the evolution of our unique cognitive abilities indicate that the brain may have been pushed to the limit of its capabilities. Research published today in BioMed Central's open access journal Genome Biology adds weight to the theory that schizophrenia is a costly... view more (2008-08-05)

Aging impairs the 'replay' of memories during sleep
Aging impairs the consolidation of memories during sleep, a process important in converting new memories into long-term ones.   view more (2008-07-30)

Obesity predisposition traced to the brain's reward system
The tendency toward obesity is directly related to the brain system that is involved in food reward and addictive behaviors, according to a new study.   view more (2008-07-30)

U of M researchers find cerebral malaria may be a major cause of brain injury in African children
Researchers at the University of Minnesota have found that cerebral malaria is related to long-term cognitive impairment in one of four child survivors. The research is published in the current issue of the journal Pediatrics.   view more (2008-07-30)

Findings on bladder-brain link may point to better treatments for problems in sleep, attention
Bladder problems may leave a mark on the brain, by changing patterns of brain activity, possibly contributing to disrupted sleep and problems with attention.   view more (2008-07-30)

Searching for shut eye: Penn study identifies possible sleep gene
While scientists and physicians know what happens if you don't get six to eight hours of shut-eye a night, investigators have long been puzzled about what controls the actual need for sleep. Researchers at the University of Pennsylvania School of Medicine might have an answer, at least in fruit... view more (2008-07-30)

Improved estrogen reception may sharpen fuzzy memory
Estrogen treatments may sharpen mental performance in women with certain medical conditions, but University of Florida researchers suggest that recharging a naturally occurring estrogen receptor in the brain may also clear cognitive cobwebs.   view more (2008-07-30)

Erectile dysfunction drugs allowed more chemotherapy to reach brain tumors in laboratory study
In a study using laboratory animals, researchers found that medications commonly prescribed for erectile dysfunction opened a mechanism called the blood-brain tumor barrier and increased delivery of cancer-fighting drugs to malignant brain tumors.   view more (2008-07-29)
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