Magnetic Resonance Imaging News and Research

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Magnetic resonance imaging (MRI) is an imaging technique which physicians use for the diagnosis and treatment of medical conditions.

Researchers improve delivery of health care for pediatric patients

Having a young child scheduled for a magnetic resonance imaging (MRI) or computed tomography (CT) scan to diagnose a potentially serious condition can be worrying for parents.

11 May 2006

That dreadful feeling - most choose more pain sooner rather than less later

According to research into why people experience the feeling of dread, a team of Emory neuroscientists led by Gregory Berns, MD, PhD, used functional magnetic resonance imaging (fMRI) to determine the areas of the brain that are activated when someone gets that dreadful feeling.

9 May 2006

Diffusion tensor imaging provides clearer picture of cannabis effect on brain

Diffusion tensor imaging, a newly developed magnetic resonance imaging technique, could enable researchers to gain a better understanding of the effects of cannabis on the brain.

8 May 2006

fMRI used to show dread responses in brain

In order to better understand how people make decisions when the outcomes are known to be unpleasant, a team of Emory neuroscientists led by Gregory Berns, MD, PhD, used functional magnetic resonance imaging (fMRI) to determine the areas of the brain that are activated when someone experiences dread.

8 May 2006

Reward-motivated learning: mesolimbic activation precedes memory formation

The prospect of a paycheck, good grade, or promotion wonderfully concentrates the mind, and researchers have now identified the brain circuitry responsible for such reward-motivated learning.

3 May 2006

Brain scan could reveal who will get Alzheimer's disease

According to researchers in California, a brain scan may possibly identify structural and metabolic brain changes that predict dementia or cognitive decline in normal older adults.

3 May 2006

Human brain observed to shut down 'self'

Everybody has experienced a sense of "losing oneself" in an activity--whether a movie, sport, sex, or meditation. Now, researchers have caught the brain in the act of losing "self" as it shuts down introspection during a demanding sensory task. New findings show that self-related function actually shuts down during such intense sensory tasks.

28 Apr 2006

Link between expectancy, visual cues and the desire to smoke

In a study recently published in the journal Neuropsychopharmacology, researchers at the Montreal Neurological Institute (MNI) and the Department of Psychology at McGill University found that when people expect to smoke in the near future, external cues such as watching someone smoke affects their brain more than their level of craving or how long they have gone without a cigarette.

23 Apr 2006

Magnetic nanotechnology holds promise in fighting cancer

Detecting cancer and reinventing computing are two challenges that seemingly have little, if anything, to do with each other. That is, unless you are a nanotechnologist like Shan Wang, an associate professor of materials science and engineering and of electrical engineering at Stanford.

20 Apr 2006

Map of the human brain sheds new light on dyslexia

Mapping the human brain at The University of Auckland has revealed that abnormal brain activity appears to be the reason why some dyslexia sufferers find it difficult to learn to read.

20 Apr 2006

New research shows specific mechanisms may not exist for facial recognition

New research from Georgetown University Medical Center suggests that the brain may not have developed a specific ability for "understanding faces" but instead uses the same kind of pattern recognition techniques to distinguish between people as it uses to search for differences between other groups of objects, such as plants, animals and cars.

19 Apr 2006

Promising treatment for Huntington's disease soon to be tested clinically

At the Institut Curie, CNRS and Inserm researchers have shown that cysteamine, which is already used to treat a rare disease called cystinosis, prevents the death of neurons in Huntington's disease. Like Alzheimer's and Parkinson's, Huntington's disease, is characterized by the abnormal death of neurons.

19 Apr 2006

Functional imaging of numerical processing in adults and 4-y-old children

Four-year-olds who are still developing numerical abilities show activity in the same brain region during numerical tasks as do math-adept adults, Duke University researchers Jessica Cantlon, Kevin Pelphrey and colleagues report in the open access journal PLoS Biology.

11 Apr 2006

Evaluation of a shape-based model of human face discrimination using fMRI and behavioral techniques

The mechanism by which the brain recognizes faces has long fascinated neurobiologists, many of whom believe that the brain perceives faces as "special" and very different from other visual objects.

11 Apr 2006

Linking implicit and explicit memory - conscious and unconscious memory linked in storing new information

The way the brain stores new, conscious information such as a first kiss or a childhood home is strongly linked to the way the human brain stores unconscious information, researchers at Yale report this month in an article featured on the cover of Neuron.

4 Apr 2006

Study demonstrates decreased neural specialization in the ventral visual cortex in older adults

One of two separate areas of the brain light up when younger people look at a house or a face, but each image activates both areas of the brain at the same time in older persons

4 Apr 2006

Functional magnetic resonance imaging can predict effectiveness of cognitive behavior therapy for treating depression

Whether or not cognitive behavior therapy (CBT) will help a person recover from depression can be predicted through brain imaging, according to research results published by the University of Pittsburgh School of Medicine in the April issue of the American Journal of Psychiatry.

4 Apr 2006

Offline persistence of memory-related cerebral activity during active wakefulnes

Sleeping helps to reinforce what we've learned. And brain scans have revealed that cerebral activity associated with learning new information is replayed during sleep.

4 Apr 2006

People with very agile minds tend to have a very agile cortex

Youth with superior IQ are distinguished by how fast the thinking part of their brains thickens and thins as they grow up, researchers at the National Institute of Mental Health (NIMH) have discovered.

4 Apr 2006

Targeting the inflamed synovium: The quest for specificity

In the April 2006 issue of Arthritis & Rheumatism, noted rheumatology specialists with Kings College London, Dr. Toby Garrood and Dr. Costantino Pitzalis offer an overview of recent breakthroughs and a preview of future directions in this critical quest for specificity.

4 Apr 2006