Neuroscience News and Research

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Abraham Lincoln may have suffered from movement disorder

Researchers at Johns Hopkins and the University of Minnesota have discovered a gene mutation in the descendants of Abraham Lincoln's grandparents that suggests the Civil War president himself might have also suffered from a disease that destroys nerve cells in the cerebellum-- the part of the brain that controls movement.

7 Feb 2006

Mechanism of torpor - hibernation-like state

If doctors could put people in hibernation and pull them out at will, scientists think they could minimize damage from strokes, help recipients' bodies accept transplanted organs, perhaps even enable astronauts to travel in suspended animation until reaching distant destinations.

7 Feb 2006

Study finds brain changes begin gradually in 'middle age'

A study looking at brain function in young, middle-aged and older adults has identified changes in brain activity that begin gradually in middle age - and which may explain why older adults find it difficult to concentrate in busy environments and filter out irrelevant information.

7 Feb 2006

Why anti-obesity cortisol reducing supplements do not work

Researchers at Oregon Health & Science University have revealed that the cortisol/obesity connection, touted by many weight-loss supplement marketers, may be even more tenuous than first thought.

2 Feb 2006

Undamaged nerve fibres cause ongoing pain not damaged

New research shows that it is undamaged nerve fibres that cause ongoing spontaneous pain, not those that are injured.

25 Jan 2006

Bidirectional behavioral plasticity of memory reconsolidation depends on amygdalar protein kinase A

When activated, a specific protein in the brain enhances long-term storage of fearful memories and strengthens previously established fearful memories, Yale School of Medicine researchers report this week in Nature Neuroscience.

23 Jan 2006

Cause of ongoing pain discovered

New research shows that it is undamaged nerve fibres that cause ongoing spontaneous pain, not those that are injured.

23 Jan 2006

Safer treatment for depression

Researchers from the University of Pittsburgh, with the help of a team of Pittsburgh high school science teachers, have developed a wireless device that is implanted in the neck to fight depression and epileptic seizures.

23 Jan 2006

Novel compound stops brain cell degeneration in Alzheimer's disease

Drug discovery researchers at Northwestern University have developed a novel orally administered compound specifically targeted to suppress brain cell inflammation and neuron loss associated with Alzheimer's disease.

22 Jan 2006

Pitt team develop wireless treatment for depression, seizures

19 Jan 2006

New microRNA mechanism for regulating brain function

Non-coding regions of the genome - those that don't code for proteins - are now known to include important elements that regulate gene activity. Among those elements are microRNAs, tiny, recently discovered RNA molecules that suppress gene expression.

18 Jan 2006

Sensory attenuation

Anticipating our own touch - for example in tickling oneself - reduces its impact, says Queen's psychologist Dr. Randy Flanagan, a member of the university's Centre for Neuroscience Studies. This is evidence of an important human adaptation that helps us interact with objects in our environment.

18 Jan 2006

How the brain recognizes objects

When a human looks at a number, letter or other shape, neurons in various areas of the brain's visual center respond to different components of that shape, almost instantaneously fitting them together like a puzzle to create an image that the individual then "sees" and understands

18 Jan 2006

Alzheimer's may be triggered by neuron division

A new study in mice suggests that Alzheimer's disease (AD) may be triggered when adult neurons try to divide. The finding helps researchers understand what goes wrong in the disease and may lead to new ways of treating it.

18 Jan 2006

Single gene may hold key to schizophrenia

By deleting a single gene in a small portion of the brains of mice, researchers at UT Southwestern Medical Center found that the animals were affected in a way resembling schizophrenia in humans.

18 Jan 2006

Molecular disruption of hypothalamic nutrient sensing induces obesity

In their latest finding on the brain's role in controlling appetite and weight, researchers at the Albert Einstein College of Medicine have shown that reducing levels of fatty acids in the hypothalamus causes rats to overeat and become obese. Their results suggest that restoring fatty-acid levels in the brain may be a promising way to treat obesity.

16 Jan 2006

Alcohol-deterrent drugs help long-term abstinence

Studies investigating the long-term outcomes of alcoholism treatment are rare and inconsistent.

8 Jan 2006

Researchers uncover new toxic mechanism in ALS - Lou Gehrig's disease

Exactly how ALS - Lou Gehrig's disease - damages motor neurons is one of medical science's lingering mysteries. At least six mishaps within cells appear to contribute to the death of the nerves that enable muscle movement, but nothing stands out as the key problem.

6 Jan 2006

Evidence that the eye has complementary brain-signaling systems at work

A new retinal photoreceptor adjusts its sensitivity in different lighting conditions, according to scientists at Brown University, where the rare eye cells were discovered.

6 Jan 2006

Astrocytes play a direct role in controlling blood flow in the brain - influencing Alzheimer's

New findings that long-overlooked brain cells play an important role in regulating blood flow in the brain call into question one of the basic assumptions underlying today's most sophisticated brain imaging techniques and could open a new frontier when it comes to understanding Alzheimer's disease.

6 Jan 2006