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New hereditary spastic paraplegia research

In work reported this week, researchers have taken our understanding of HSP to a new level with the development of an animal model for the disease.

13 Jul 2004

Study shows that in older age, myelin insulation breaks down, resulting in a decline in the speed and efficiency of our brain

UCLA neuroscientists using a new MRI analysis technique to examine myelin sheaths that insulate the brain's wiring report that as people age, neural connections that develop last degenerate first.

12 Jul 2004

Having a good time can strengthen different centres in the brain and help it grow healthy brain cells

Dr Ian Reid, professor of mental health at the University of Aberdeen, told delegates that for many years psychiatrists believed that poor mental health was just caused by imbalances in various brain chemicals.

10 Jul 2004

Prosthetic devices operated by brain activity

In the July 9 issue of the journal Science, California Institute of Technology neuroscientists Sam Musallam, Brian Corneil, Bradley Greger, Hans Scherberger, and Richard Andersen report on the Andersen lab's success in getting monkeys to move the cursor on a computer screen by merely thinking about a goal they would like to achieve, and assigning a value to the goal.

8 Jul 2004

Researchers shed new light on the function of huntingtin, the protein whose mutation underlies Huntington’s disease

CNRS and Inserm research scientists at the Institut Curie have shed new light on the function of huntingtin, the protein whose mutation underlies Huntington’s disease.

8 Jul 2004

People who have early stage Alzheimer's disease could be more capable of learning than previously thought

The promising studies suggest that some people with early cognitive impairment can still be taught to recall important information and to better perform daily tasks.

4 Jul 2004

People who suffer from severe depression have more nerve cells in the part of the brain that controls emotion

Studies of postmortem brains of patients diagnosed with major depressive disorder (MDD) showed a 31 percent greater than average number of nerve cells in the portion of the thalamus involved with emotional regulation.

2 Jul 2004

Brain recordings may shed light on disorders of self-perception such as schizophrenia, stroke and phantom limb syndrome

Scientists have made the first recordings of the human brain’s awareness of its own body, using the illusion of a strategically-placed rubber hand to trick the brain.

2 Jul 2004

Experimental therapy improves arm function in chronically impaired stroke survivors

An experimental therapy improves arm function in chronically impaired stroke survivors long after the possibility of spontaneous recovery has been exhausted, researchers reported today at the 5th World Stroke Congress.

26 Jun 2004

Primitive part of the brain plays a role in processing visual information unconsciously

Temporary rapidly induced blindness has provided evidence that an older, primitive part of the brain plays a role in processing visual information unconsciously.

23 Jun 2004

New approach to interpreting brain electroencephalograms could help understanding of epilepsy and autism

A team led by University of California San Diego neurobiologists has developed a new approach to interpreting brain electroencephalograms, or EEGs, that provides an unprecedented view of thought in action and has the potential to advance our understanding of disorders like epilepsy and autism.

16 Jun 2004

Artificial vibration has potential to help stroke patients recover their mobility more quickly

By artificially vibrating certain muscle parts, the brain areas and neuronal pathways responsible for movement can be trained. This has the potential to help stroke patients recover their mobility more quickly. These are the results of PhD research by Maarten Steyvers of the Department of Kinesiology, K.U.Leuven.

15 Jun 2004

Size and shape of synapses among neurons in the cerebral cortex determine long term memory capability

In a study to appear in the June 10 issue of Neuron, neuroscientists at the Picower Center for Learning and Memory at MIT show for the first time that storage of long-term memories depends on the size and shape of synapses among neurons in the outer part of the brain, the cerebral cortex.

14 Jun 2004

Brain builds early warning detection system by working out the odds on potentially harmful experiences

An experiment conducted by Dr Ben Seymour and colleagues at the Wellcome Department of Imaging Neuroscience, University College London, revealed that volunteers couldn’t recall the details of a specific test which had resulted in them receiving a mild electric shock.

10 Jun 2004

Howard Hughes researchers find Alzheimer's may leave some forms of memory intact

Howard Hughes Medical Institute (HHMI) researchers have made the surprising discovery that people with Alzheimer's disease retain the capability for a specific form of memory used for rote learning of skills, even as their memories of people and events are extinguished.

10 Jun 2004

Genetic signature associated with the aging human brain

Unraveling the mysteries of the aging brain is a major goal for brain science, especially given the exploding population of senior citizens and the obvious desire to preserve brain function as long as possible.

9 Jun 2004

Tongue Display Unit allows blind people to see with their tongue

The Tongue Display Unit (TDU) can activate areas that are normally reserved for visual information and are unused when someone suffers from congenital blindness.

2 Jun 2004

Study helps to visualize how brain develops with age

The brain's center of reasoning and problem solving is among the last to mature, a new study graphically reveals. The decade-long magnetic resonance imaging (MRI) study of normal brain development, from ages 4 to 21, by researchers at NIH's National Institute of Mental Health (NIMH) and University of California Los Angeles (UCLA) shows that such "higher-order" brain centers, such as the prefrontal cortex, don't fully develop until young adulthood.

18 May 2004

Magnetic brain therapy may help spinal cord damage

A preliminary study has shown for the first time that it may be possible to help people who have suffered partial damage to their spinal cord by applying a magnetic therapy to their brain.

11 May 2004

Risk of prostate cancer greater in men over 50 with high levels of testosterone

Men over 50 years of age with high blood levels of testosterone have an increased risk of prostate cancer, according to a study by researchers at Johns Hopkins and the National Institute on Aging. The finding throws some doubt on the safety of testosterone replacement therapy, the investigators say.