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Naturally occurring brain chemical acetylcholine enhances visual processing

Neuroscientists at New York University have found that a naturally occurring chemical in the brain can enhance visual processing and suggest that this chemical may represent part of the biological basis of visual attention.

21 Nov 2007

New study finds blood-spinal cord barrier compromised in mice with ALS

The blood-spinal cord barrier is functionally impaired in areas of motor neuron damage in mice modeling amyotrophic lateral sclerosis (ALS), report researchers at the University of South Florida Center for Aging and Brain Repair.

21 Nov 2007

Molecular foreman discovered for brain wiring

Researchers have identified a master regulatory molecule that is responsible for triggering the remodeling of neuronal connections that is critical for learning.

21 Nov 2007

Mapping the selective brain

Researchers have added a new piece to the puzzle of how the brain selectively amplifies those distinctions that matter most from the continuous cascade of sights, sounds, and other sensory input.

21 Nov 2007

Is there an objective biological basis for the experience of beauty in art?

Or is aesthetic experience entirely subjective? This question has been addressed in a paper published in this week's PLoS ONE, Cinzia Di Dio, Emiliano Macaluso and Giacomo Rizzolatti. The researchers used fMRI scans to study the neural activity in subjects with no knowledge of art criticism, who were shown images of Classical and Renaissance sculptures.

21 Nov 2007

Antidepressant drug mianserin extends the lifespan of adult roundworms

A team of scientists led by Howard Hughes Medical Institute (HHMI) investigator Linda B. Buck has found that a drug used to treat depression can extend the lifespan of adult roundworms.

21 Nov 2007

Human skin could be a new source of stem cells

A simple recipe—including just four ingredients—can transform adult human skin cells into cells that resemble embryonic stem cells, researchers report in an immediate early publication of the journal Cell, a publication of Cell Press.

21 Nov 2007

Discovery of proteins key to normal brain function

MIT researchers have identified a family of proteins key to the formation of the communication networks critical for normal brain function.

21 Nov 2007

New non-addictive pain-killers

Two University of Adelaide pharmacologists working with one the world's leading neuroscientists have helped pave the way for the development of new pain-killing drugs that are not addictive.

20 Nov 2007

New insight into how cystatin C may lower the risk for Alzheimer's disease

For unknown reasons a protein called amyloid beta aggregates into toxic plaques in the brain, killing neurons.

19 Nov 2007

University of Illinois at Chicago receives $2.2 million grant to develop drugs to suppress cocaine cravings

The University of Illinois at Chicago College of Pharmacy has received a $2.2 million federal grant to develop therapeutics to suppress the cravings of cocaine addicts.

19 Nov 2007

New understanding of how brain processes memory

Scientists at The University of Arizona have added another piece of the puzzle of how the brain processes memory.

16 Nov 2007

Lonesome people may have lower levels of specific brain hormone

The anxiety and aggression that result from social isolation have been traced to altered levels of an enzyme that controls production of a brain hormone.

15 Nov 2007

Neurofibromatosis 1 gene drives pivotal decision in early brain development

A gene linked to pediatric brain tumors is an essential driver of early brain development, researchers at Washington University School of Medicine in St. Louis have found.

14 Nov 2007

Using neural signals to predict sensory decisions

The rodent whisker sensory system is particularly intriguing because it is "active": the animal generates sensory signals by palpating objects through self-controlled whisker motion (just as we move our fingertips along surfaces to measure their tactile features).

13 Nov 2007

Researchers image a biomarker of neurogenesis

Mirjana Maletic-Savatic, M.D., Ph.D, and co-investigators from Stony Brook University Medical Center, Brookhaven National Laboratory and Cold Spring Harbor Laboratory have discovered a way to image a biomarker of neural stem and progenitor cells (NPCs) in the living human brain.

13 Nov 2007

Acne drug Roaccutane may disrupt serotonin production

New research has found that a drug used to treat severe forms of acne reduces the availability of the chemical serotonin, low levels of which have been linked to aggression and clinical depression.

13 Nov 2007

Microfluidics chips used to watch worm behavior

They wriggle and turn and explore new territory until they find something edible, and then they stay the course until the food disappears.

13 Nov 2007

Research reveals critical knowledge about the nervous system

Uncover the neural communication links involved in myelination, the process of protecting a nerve's axon, and it may become possible to reverse the breakdown of the nervous system's electrical transmissions in such disorders as multiple sclerosis, spinal cord injuries, diabetes and cancers of the nervous system.

6 Nov 2007

Inheriting two genetic mutations that can individually cause epilepsy may cancel each other

Inheriting two genetic mutations that can individually cause epilepsy might actually be "seizure-protective," said Baylor College of Medicine researchers in a report that appears online in the journal Nature Neuroscience.

5 Nov 2007