Cortex News and Research

RSS

Many antisocial boys may have malfunctioning brains

Antisocial boys who abuse drugs, break laws, and act recklessly are not just "bad" kids. Many of these boys may have malfunctioning brains, according to a new study by researchers at the University of Colorado School of Medicine.

24 Sep 2010

Researchers reveal Prozac reactions to increase serotonin level

The response time to antidepressants, such as Prozac, is around three weeks. The adaptation mechanisms of the neurons to antidepressants has, until now, remained enigmatic. In particular, the researchers have revealed, for the first time, a sequence of reactions caused by Prozac at the neuron level, which contributes to an increase in the amounts of serotonin, a chemical "messenger" essential to the brain, and deficient in depressive individuals.

17 Sep 2010

Hormone Foundation produces two fact sheets to dispel myths of adrenal fatigue, Wilson's temperature syndrome

The Hormone Foundation, the public education affiliate of The Endocrine Society, has produced two new fact sheets to dispel myths about so-called "diseases" popularized through the Internet: adrenal fatigue and Wilson's temperature syndrome.

16 Sep 2010

Researchers to contribute to brain circuit mapping in Human Connectome Project

Thirty-three researchers at nine institutions will contribute to the Human Connectome Project (http://www.humanconnectome.org/consortia). Using powerful, custom-built brain scanners, a supercomputer, new brain analysis techniques and other state-of-the-art resources, they will trace the anatomical 'wires' that interconnect thousands of different regions of the human brain's gray matter.

16 Sep 2010

Neural inhibition critical in ability to make choices

A new University of Colorado at Boulder study sheds light on the brain mechanisms that allow us to make choices and ultimately could be helpful in improving treatments for the millions of people who suffer from the effects of anxiety disorders.

14 Sep 2010

Laser acupuncture a plausible treatment for depression

Acupuncture produces significant changes in parts of the brain that regulate emotional states and is a biologically plausible treatment for depression and other neuropsychiatric disorders, Australian researchers have shown for the first time.

13 Sep 2010

New neurological deficit behind amblyopia

Researchers at New York University's Center for Neural Science have identified a new neurological deficit behind amblyopia, or "lazy eye." Their findings, which appear in the most recent issue of the Journal of Neuroscience, shed additional light on how amblyopia results from disrupted links between the brain and normal visual processing.

10 Sep 2010

Brain is able to invent creative new solutions to perform impossible actions: Study

The human brain is a powerful simulation machine. Sports professionals and amateurs alike are well aware of the advantages of mentally rehearsing a movement prior to its execution and it is not surprising that the phenomenon, known as motor imagery, has already been extensively investigated. However, a new study published in the September 2010 issue of Elsevier's Cortex suggests that there may be more to motor imagery than previously thought.

10 Sep 2010

Researchers discover generation of pyramidal neurons by glial cell precursors

In an unanticipated finding, researchers at the UC Davis School of Medicine have discovered that, during early adulthood, the brain produces new excitatory neurons, and that these neurons arise from non-neuronal support cells in an area of the brain that processes smell.

10 Sep 2010

Noscira receives FDA approval for Tideglusib drug to treat PSP

Noscira, a Grupo Zeltia subsidiary specialized in research and development of drugs to treat neurodegenerative diseases, has announced that the U.S. Food and Drug Administration (FDA) has granted Fast Track status to its neuroprotector drug Tideglusib (ZentylorTM) to treat Progressive Supranuclear Palsy (PSP), a fast-advancing fatal degenerative brain disorder.

10 Sep 2010

Researchers investigate familial prosopagnosia to recognize faces

In our dynamic 3D world, we can encounter a familiar face from any angle and still recognize that face with ease, even if the person has, for example, changed his hair style. This is because our brain has used the 2D snapshots perceived by our eyes (like a camera) to build and store a 3D mental representation of the face, which is resilient to such changes.

9 Sep 2010

UCLA psychologist explains measure to overcome drug addiction

Millions of Americans suffer from severe addictions that can ruin lives and are extremely difficult to control. Nearly 2 million enter roughly 12,000 addiction treatment programs in the U.S. each year.

9 Sep 2010

Methylphenidate facilitates recovery from drug addiction

A brain-scanning study at the U.S. Department of Energy's (DOE) Brookhaven National Laboratory, conducted with collaborators from Stony Brook University, reveals that an oral dose of methylphenidate, commonly known as Ritalin, improves impaired brain function and enhances cognitive performance in people who are addicted to cocaine.

7 Sep 2010

Researchers decode words from brain signals in paralyzed people

In an early step toward letting severely paralyzed people speak with their thoughts, University of Utah researchers translated brain signals into words using two grids of 16 microelectrodes implanted beneath the skull but atop the brain. "We have been able to decode spoken words using only signals from the brain with a device that has promise for long-term use in paralyzed patients who cannot now speak," says Bradley Greger, an assistant professor of bioengineering.

7 Sep 2010

Counterpart of cerebral cortex discovered in marine worms

Our cerebral cortex, or pallium, is a big part of what makes us human: art, literature and science would not exist had this most fascinating part of our brain not emerged in some less intelligent ancestor in prehistoric times. But when did this occur and what were these ancestors? Unexpectedly, scientists at the European Molecular Biology Laboratory (EMBL) in Heidelberg, Germany, have now discovered a true counterpart of the cerebral cortex in an invertebrate, a marine worm.

3 Sep 2010

GABRA2 gene influences brain’s reward responses to alcohol odors: Research

Single nucleotide polymorphisms (SNPs) are DNA sequence variations that occur when a single nucleotide in the genome sequence is altered. Prior research suggested an association between SNPs in a gene that encodes aspects of the brain's gamma-amino butyric acid (GABA)-A receptors (the GABRA2 gene) and alcohol dependence. A study of responses to the aromas of alcoholic drinks according to subjects' genotyping at a SNP in GABRA2 has found that this genotype can affect the brain's reward responses to cues such as alcohol odors.

3 Sep 2010

Researcher awarded $1.8M grant to investigate sex differences in anxiety

Anxiety disorders afflict women twice as often as men, but estrogen might not be the reason. Testosterone, though, could be. That is one of the preliminary findings in the lab of Florida State University researcher Mohamed Kabbaj, associate professor in the College of Medicine. He recently was awarded a five-year, $1.8 million grant from the National Institute of Mental Health to investigate the sex differences in anxiety.

2 Sep 2010

Neurobiological markers of depression can help tailor antidepressant treatment to the brain

Depression is actually defined by specific clinical symptoms such as sadness, difficulty to experience pleasure, sleep problems etc., present for at least two weeks, with impairment of psychosocial functioning. These symptoms guide the physician to make a diagnosis and to select antidepressant treatment such as drugs or psychotherapy.

31 Aug 2010

Battery of tests for quick assessment of cognitive abilities in Down syndrome patients

Neuroscientists in the Down Syndrome Research Group at the University of Arizona have created a battery of tests that quickly aid in the assessment of the cognitive abilities of persons with Down syndrome.

27 Aug 2010

Neuroeconomics research identifes distinct brain structures for tracking various outcomes

Scientists at Harvard University have found that humans can make difficult moral decisions using the same brain circuits as those used in more mundane choices related to money and food.

26 Aug 2010