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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

Carnegie Mellon researchers to develop new stem cell-based drug delivery therapy

Carnegie Mellon University's Stefan F. Zappe is using adult neural stem cells to develop a new stem cell-based drug delivery therapy that may ultimately help treat a variety of inherited genetic disorders like Hunter syndrome.

5 Nov 2007

Harvard 'Brainbow' helps chart neural circuits

By activating multiple fluorescent proteins in neurons, neuroscientists at Harvard University are imaging the brain and nervous system as never before, rendering their cells in a riotous spray of colors dubbed a "Brainbow."

1 Nov 2007

Neural stem cells may help to restore memory after brain damage

In the study, mice with brain injuries experienced enhanced memory -- similar to the level found in healthy mice -- up to three months after receiving a stem cell treatment. Scientists believe the stem cells secreted proteins called neurotrophins that protected vulnerable cells from death and rescued memory.

31 Oct 2007

New brain cells listen before they talk

Newly created neurons in adults rely on signals from distant brain regions to regulate their maturation and survival before they can communicate with existing neighboring cells - a finding that has important implications for the use of adult neural stem cells to replace brain cells lost by trauma or neurodegeneration, Yale School of Medicine researchers report in The Journal of Neuroscience.

31 Oct 2007

Neurons in primate cortex associate numerical meaning with visual signs

Humans share with animals a language-independent system for representing numerical quantity, but number symbols have to be acquired throughout childhood.

31 Oct 2007

Light beams used as tweezers to manipulate cells

In a feat that seems like something out of a microscopic version of Star Trek, MIT researchers have found a way to use a "tractor beam" of light to pick up, hold, and move around individual cells and other objects on the surface of a microchip.

31 Oct 2007

Fibromyalgia pain caused by neuron mismatch

The unexplained pain experienced by patients with fibromyalgia is the result of a mismatch between sensory and motor systems, new research suggests.

31 Oct 2007

Lithium commonly used to treat bi-polar disorder increases lifespan in Nematode worms

Nematode worms treated with lithium show a 46 percent increase in lifespan, raising the tantalizing question of whether humans taking the mood affecting drug are also taking an anti-aging medication.

31 Oct 2007

Risk factors that may contribute to the onset of Amyotrophic Lateral Sclerosis

Researchers in Rensselaer Polytechnic Institute's Social and Behavioral Research Lab (SBRL) are leading a study to investigate potential environmental, lifestyle, and medical variables that may contribute to the onset of Amyotrophic Lateral Sclerosis (ALS).

29 Oct 2007

New insights into how the brain takes in and assembles stimuli from the outside world

The area of the brain that processes sounds entering the ears also appears to process stimulus entering the eyes, providing a novel explanation for why many viewers believe that ventriloquists have thrown their voices to the mouths of their dummies.

29 Oct 2007

Odd protein interaction guides development of olfactory system

Scientists have discovered a strange mechanism for the development of the fruit fly antennal lobe, an intricate structure that converts the chaotic stew of odors in the environment into discrete signals in the brain.

29 Oct 2007