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neurobiology

Drawing of a human head with gears and computer parts on it.

·October 2, 2012·2 min read

Intelligence Is in the Genes, but Where?

A new study reveals that most of the specific genes long thought to be linked to intelligence probably have no bearing on one’s IQ. And it may be some time before researchers can identify intelligence’s specific genetic roots.

Scientists in front of computer monitors examine microscope images showing the growth of axons.

Featured Neuroscience

·October 2, 2012·4 min read

Study Suggests Immune System Can Boost Regeneration of Peripheral Nerves

Research seeks the 'master knob' to turn on nerve repair. Modulating immune response to injury could accelerate the regeneration of severed peripheral nerves, a new study in an animal model has found. By altering activity of the macrophage cells that respond to injuries, researchers dramatically increased the rate at which nerve processes regrew.

Featured Neuroscience

·September 21, 2012·4 min read

Research Identifies Protein that Regulates Key Fate Decision in Cortical Progenitor Cells

Researchers solved an important piece of one of neuroscience's outstanding puzzles: how progenitor cells in the developing mammalian brain reproduce themselves while also giving birth to neurons that will populate the emerging cerebral cortex, the seat of cognition and executive function in the mature brain.

Featured Psychology

·September 20, 2012·2 min read

‘Psychopaths’ Have An Impaired Sense of Smell

People with psychopathic tendencies have an impaired sense of smell, which points to inefficient processing in the front part of the brain (orbitofrontal cortex) according to a new study.

Featured Neuroscience

·September 19, 2012·4 min read

Human Brains Share a Consistent Genetic Blueprint and Possess Enormous Biochemical Complexity

Scientists at the Allen Institute for Brain Science reported that human brains share a consistent genetic blueprint and possess enormous biochemical complexity. The findings stem from the first deep and large-scale analysis of the vast data set publicly available in the Allen Human Brain Atlas.

Genetics

·September 18, 2012·1 min read

New Findings on Protein Misfolding

Researchers identified 21 proteins that specifically bind to a protein called ataxin-1. Twelve of these proteins enhance the misfolding of ataxin-1 and thus promote the formation of harmful protein aggregate structures, whereas nine of them prevent the misfolding.

Featured Neuroscience

·September 17, 2012·4 min read

Blue Brain Project Accurately Predicts Connections Between Neurons

Proof of concept: Researchers identify principles to support brain simulation models. Blue Brain Project has identified key principles that determine synapse-scale connectivity by virtually reconstructing a cortical microcircuit and comparing it to a mammalian sample. These principles now make it possible to predict the locations of synapses in the neocortex.

Autism Featured Neurology

·September 14, 2012·2 min read

Disorder of Neural Circuits in Autism Mouse Model is Reversible

Scientists have now identified a specific dysfunction in neuronal circuits that is caused by autism. The scientists also report about their success in reversing these neuronal changes in mouse models.

Electrophysiology Featured Neuroscience

·September 14, 2012·3 min read

Scientists Use Prosthetic Device to Restore and Improve Impaired Decision Making Ability in Animals

Scientists used an electronic prosthetic system to tap into existing circuitry in the brain at the cellular level and record the firing patterns of multiple neurons in the prefrontal cortex, the part of the brain involved in decision-making. They then “played” that recording back to the same brain area to electrically stimulate decision-based neural activity. Not only did it restore function, in some cases, it also improved it.

Featured Psychology

·September 13, 2012·3 min read

How Early Social Deprivation Impairs Long-Term Cognitive Function

A study shows social isolation during early life prevents the cells that make up the brain's white matter from maturing and producing the right amount of myelin, the fatty "insulation" on nerve fibers that helps them transmit long-distance messages within the brain.

Electrophysiology Featured Neuroscience

·September 13, 2012·3 min read

Stress Breaks Loops that Hold Short-Term Memory Together

By watching individual neurons at work, a group of psychologists at the University of Wisconsin-Madison has revealed just how stress can addle the mind, as well as how neurons in the brain's prefrontal cortex help remember information in the first place.

Featured Genetics Neurology

·September 13, 2012·3 min read

Neural Stem Cells Regenerate Axons in Severe Spinal Cord Injury

Researchers were able to regenerate an astonishing degree of axonal growth at the site of severe spinal cord injury in rats. Results were then replicated using two human stem cell lines, one already in human trials for ALS. “We obtained the exact results using human cells as we had in the rat cells,” said Tuszynski.