Cortex News and Research

RSS

New study reveals brain networks are involved in 'cross-modal' person recognition

Human social interactions are shaped by our ability to recognise people. Faces and voices are known to be some of the key features that enable us to identify individual people, and they are rich in information such as gender, age, and body size, that lead to a unique identity for a person.

11 Mar 2011

Study sheds light on how signals from CSF help drive neural development

Cerebrospinal fluid, the fluid found in and around the brain and spinal cord, may play a larger role in the developing brain than previously thought, according to researchers at Children's Hospital Boston.

11 Mar 2011

Certain patterns of brain activity allow 'seeing' two colours at the same time

The Nobel prize-winning physicist Richard Feynman once wrote in his autobiographical book (What do you care what other people think?): "When I see equations, I see letters in colors - I don't know why […] And I wonder what the hell it must look like to the students."

10 Mar 2011

First recording of cortically induced neural activity of basal ganglia in Parkinson's disease, dystonia during DBS

Movement disorders such as Parkinson's diseases and dystonia are caused by abnormal neural activity of the basal ganglia located deep in the brain. The basal ganglia are connected to the cerebral cortex in the brain surface through complex neural circuits.

10 Mar 2011

Study reveals flexibility of neuronal processes underlying conscious perception

Our brains process many more stimuli than we become aware of. Often images enter our brain without being noticed: visual information is being processed, but does not reach consciousness, that is, we do not have an impression of it. Then, what is the difference between conscious and unconscious perception, and can both forms of perception be changed through practice?

10 Mar 2011

Right-handers biased to choosing their right hands

The vast majority of humans - over 90% - prefer to use their right hand for most skilled tasks. For decades, researchers have been trying to understand why this asymmetry exists. Why, with our two cerebral hemispheres and motor cortices, are we not equally skilled with both hands?

9 Mar 2011

Sanfilippo syndrome compromises blood-brain barrier, leads to brain damage

A study into the effects of Sanfilippo Syndrome type B (MPS III B) has found that the barrier responsible for protecting the brain from the entry of harmful blood-borne substances is structurally and functionally damaged by the devastating disease. University of South Florida researchers identified damage in specific brain structures involved in the pathology of MPS III B, one of four Sanfilippo syndromes, all of which are inherited diseases of metabolism.

9 Mar 2011

Brain's learning capacity recharges during light, dreamless slumber

Scientists have long puzzled over the many hours we spend in light, dreamless slumber. But a new study from the University of California, Berkeley, suggests we're busy recharging our brain's learning capacity during this traditionally undervalued phase of sleep, which can take up half the night.

9 Mar 2011

Grey matter volume in cerebellum predicts general intelligence

Research suggests that intelligence in humans is controlled by the part of the brain known as the 'cortex', and most theories of age-related cognitive decline focus on cortical dysfunction.

9 Mar 2011

CPCHE launches multi-year project to promote healthier home energy retrofits

Home energy retrofits tackle climate change and when done right they should make homes healthier, while aiding families struggling with utility bills.

6 Mar 2011

Novel gene therapy can promote removal of amyloid plaques and prevent Alzheimer's disease

Gene therapy that boosts the ability of brain cells to gobble up toxic proteins prevents development of Alzheimer's disease in mice that are predestined to develop it, report researchers at Georgetown University Medical Center. They say the treatment - which is given just once - could potentially do the same in people at the beginning stages of the disease.

5 Mar 2011

Efficiency of brain function depends on family's genetic makeup

How well our brain functions is largely based on our family's genetic makeup, according to a University of Melbourne led study.

4 Mar 2011

Tobacco smoking leads to less activity in the 'executive center' of brain

Tobacco smoking is the leading preventable cause of death and disease in the U.S., with more than 400,000 deaths each year attributable to smoking or its consequences. And yet teens still smoke. Indeed, smoking usually begins in the teen years, and approximately 80 percent of adult smokers became hooked by the time they were 18. Meanwhile, teens who don't take up smoking usually never do.

3 Mar 2011

Viruses that are natural part of human genome may retrovirus culprit

A retrovirus that inserted itself into the human genome thousands of years ago may be responsible for some cases of the neurodegenerative disease amyotrophic lateral sclerosis (ALS), also known as Lou Gherig’s disease. The finding, made by Johns Hopkins scientists, may eventually give researchers a new way to attack this universally fatal condition.

2 Mar 2011

Freescale adds Kinetis K50 family of MCUs for medical, industrial applications

Freescale Semiconductor today announced the newest addition to its growing Kinetis 32-bit microcontroller (MCU) line - the Kinetis K50 family. This new family, targeted for medical and industrial applications, further expands the industry's most extensive and scalable portfolio built on the ARM® Cortex™-M4 core.

1 Mar 2011

Study: Visual cortex can dramatically change its function

When your brain encounters sensory stimuli, such as the scent of your morning coffee or the sound of a honking car, that input gets shuttled to the appropriate brain region for analysis. The coffee aroma goes to the olfactory cortex, while sounds are processed in the auditory cortex.

1 Mar 2011

Scientists suggest that lateral habenula can be a prime locus of human depression

A team of neuroscientists at Cold Spring Harbor Laboratory, Brookhaven National Laboratory and UC San Diego has collected evidence suggesting that a previously overlooked portion of the brain could be a prime locus of human depression.

24 Feb 2011

Special issue of Neuron journal provides new insight into recent advances in addiction research

Addiction is a brain disease that destroys lives, devastates families and tears at the very fabric of society. Effective prevention and treatment of addiction requires a clear understanding of the complex brain mechanisms that underlie addictive behaviors, and research has provided a fascinating view of how substance abuse hijacks neuronal circuits involved in reward and motivation and causes profound and persistent changes in behavior.

24 Feb 2011

Stripe of Gennari in the blind may play greater role in processing tactile stimuli

The Stripe of Gennari develops even in those who are blind from birth and does not degenerate, despite a lack of visual input. This was discovered by Robert Trampel and colleagues from the Max Planck Institute for Human Cognitive and Brain Sciences using magnetic resonance imaging. This bundle of nerve fibers, which is approximately 0.3 mm thick, is not exclusively responsible for optic information.

23 Feb 2011

New study provides insight into brain activity of depressed women responding to crying infants

Mothers who are depressed respond differently to their crying babies than do non-depressed moms. In fact, their reaction, according to brain scans at the University of Oregon, is much more muted than the robust brain activity in non-depressed moms.

23 Feb 2011