Cortex News and Research

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Lynx2 gene linked to nervous behavior in mice

To measure anxiety in a mouse and suggest it's similar to anxiety in a person may seem like a stretch, but the metrics sound uncannily familiar.

20 Feb 2009

Echoes discovered in early visual brain areas play role in working memory

Vanderbilt University researchers have discovered that early visual areas, long believed to play no role in higher cognitive functions such as memory, retain information previously hidden from brain studies.

20 Feb 2009

Differences in language-related brain activity affected by sex?

Men show greater activation than women in the brain regions connected to language, according to researchers from CNRS, Université de Montpellier I and Montpellier III.

18 Feb 2009

Cellular changes in the sleeping brain promote the formation of memories

If you ever argued with your mother when she told you to get some sleep after studying for an exam instead of pulling an all-nighter, you owe her an apology, because it turns out she's right.

15 Feb 2009

New insight into why gambling is so attractive to some

A new study demonstrates that when gambling, almost winning promotes significant recruitment of win-related circuitry within the brain and enhances the motivation to gamble.

15 Feb 2009

Brain-derived neurotrophic factor protects key brain cells in Alzheimer's models

Memory loss, cognitive impairment, brain cell degeneration and cell death were prevented or reversed in several animal models after treatment with a naturally occurring protein called brain-derived neurotrophic factor (BDNF).

8 Feb 2009

Growth factor protects key brain cells in Alzheimer's models

8 Feb 2009

Cognitive training can alter the biochemistry of the brain

Researchers at the Swedish medical university Karolinska Institutet have shown for the first time that the active training of the working memory brings about visible changes in the number of dopamine receptors in the human brain.

8 Feb 2009

Safinamide significantly improved motor function in patients with advanced Parkinson's disease

Merck Serono, a division of Merck KGaA, Darmstadt, Germany, and its partner Newron Pharmaceuticals SpA has announced that the first Phase III trial of investigational agent safinamide as adjunctive therapy to levodopa (study 016) met its primary endpoint by increasing daily "ON" time in mid- to late-stage Parkinson's disease patients with motor fluctuations by 1.3 hours.

5 Feb 2009

Decoding funny faces to detect disease

Like Russell Crowe's character in A Beautiful Mind, life is often difficult for the 2.4 million Americans with schizophrenia.

5 Feb 2009

Effects of brain exercise depend on opponent

Playing games against a computer activates different brain areas from those activated when playing against a human opponent.

3 Feb 2009

Brain perceives optical illusions as real motion

Ever get a little motion sick from an illusion graphic designed to look like it's moving?

2 Feb 2009

New insights into growth factor's role in brain development

New research sheds light on a neural growth factor called proBDNF, finding that it is present and potentially active during the perinatal period when the brain's circuitry and memory-encoding regions are being refined.

2 Feb 2009

Stress disrupts human thinking, but the brain can bounce back

A new neuroimaging study on stressed-out students suggests that male humans, like male rats, don't do their most agile thinking under stress.

29 Jan 2009

Imaging study shows how memories become permanent

A new brain imaging study illustrates what happens to memories as time goes by.

29 Jan 2009

New method for projecting future kidney function in transplants

The older the kidney, the worse it works - though exactly how much worse isn't known.

27 Jan 2009

Researchers learn some of nicotine's secrets

Duke University Medical System researchers have discovered there are differing taste pathways for nicotine, which could provide a new approach for future smoking-cessation products.

23 Jan 2009

When less attention improves behavior

A new study conducted at the Centre for Studies and Research in Cognitive Neuroscience of the University of Bologna, and published by Elsevier in the February 2009 issue of Cortex shows that, in confabulating patients, memory accuracy improves when attentional resources are reduced.

21 Jan 2009

New findings on schizophrenia

Schizophrenia may blur the boundary between internal and external realities by overactivating a brain system that is involved in self-reflection, and thus causing an exaggerated focus on self, a new MIT and Harvard brain imaging study has found.

21 Jan 2009

Mild brain stimulation may enhance motor skills in traumatic brain injury, stroke

People who received a mild electrical current to a motor control area of the brain were significantly better able to learn and perform a complex motor task than those in control groups.

19 Jan 2009