Weekly Neuroscience Update

A run of poor sleep can have a potentially profound effect on the internal workings of the human body, say UK researchers.

As a bird sings, some neurons in its brain prepare to make the next sounds while others are synchronized with the current notes—a coordination of physical actions and brain activity that is needed to produce complex movements, new research at the University of Chicago shows. In an article in the current issue of Nature, neuroscientist Daniel Margoliash and colleagues show, for the first time, how the brain is organized to govern skilled performance—a finding that may lead to new ways of understanding human speech production.

Deep brain stimulation has helped people with severe obsessive-compulsive disorder, and new research begins to explain why. A Dutch study appearing in the Feb. 24 online issue of the journal Nature Neuroscience found the procedure essentially restored normal function in a part of the brain called the nucleus accumbens.

Researchers have identified a possible treatment window of several years for plaques in the brain that are thought to cause memory loss in diseases such as Alzheimer’s. The Mayo Clinic study is published in the Feb. 27 online issue of Neurology.

Though it’s most often associated with disorders like diabetes, Harvard researchers have shown how the signaling pathway of insulin and insulin-like peptides plays another critical role in the body – helping to regulate learning and memory.

Researchers in Scotland and Germany have discovered a molecular mechanism that shows promise for developing a cure for Huntington’s Disease (HD).

Some people do not learn from their mistakes because of the way their brain works, according to research led by an academic at Goldsmiths, University of London. The research examined what it is about the brain that defines someone as a ‘good learner’ from those who do not learn from their mistakes.

Scientists from the University of Oxford say they have discovered how the brain protects itself from damage that occurs in stroke.

A team of French researchers has discovered that the human brain is capable of distinguishing between different types of syllables as early as three months prior to full term birth. 

Weekly Round-Up

Researchers believe they found a link between the volume of one’s cerebellum and general intelligence. The cerebellum is involved in the coordination of voluntary motor movement, balance and equilibrium and muscle tone. It is located just above the brain stem and toward the back of the brain.

A small but promising study suggests that magnetic stimulation of the brain could aid the recovery of some stroke patients.

Treatment that increases brain levels of an important regulatory enzyme may slow the loss of brain cells that characterizes Huntington’s disease (HD) and other neurodegenerative disorders.

How much do babies remember about the world around them? New research reveals that even though infants can’t remember the details of an object that has been hidden from view, their brains have built-in “pointers” that help them retain the idea that the object still exists even though they can’t see it anymore.

Neuroscience research involving epileptic patients with brain electrodes surgically implanted in their medial temporal lobes shows that patients learned to consciously control individual neurons deep in the brain with thoughts.

Loyola University Medical Center researchers are reporting what could become the first reliable method to predict whether an antidepressant will work on a depressed patient.

How we perceive motion is a significantly more complex process than previously thought, researchers at New York University’s Center for Neural Science, Stanford University and the University of Washington have found. Their results, which appear in the journalCurrent Biology, show that the relationship between the brain and visual perception varies, depending on the type of motion we are viewing.

After birth, the developing brain is largely shaped by experiences in the environment. However, neurobiologists at Yale and elsewhere have also shown that for many functions the successful wiring of neural circuits depends upon spontaneous activity in the brain that arises before birth independent of external influences.