Brain

Imaging technique shows premature birth interrupts vital brain development processes leading to reduced cognitive abilities in i

Imaging technique shows premature birth interrupts vital brain development processes leading to reduced cognitive abilities in i

This video shows the development of the frontal and temporal regions of the cerebral cortex in preterm infants during the last three months before the normal time of birth, turning from red to blue as it matures. The primary motor and sensory regions are well developed at the beginning of the sequence, while much of the association cortex involved in complex functions develop rapidly over this period, particularly in the most frontal regions.

USF researchers find far-reaching, microvascular damage in uninjured side of brain after stroke

USF researchers find far-reaching, microvascular damage in uninjured side of brain after stroke

Tampa, FL (May 20, 2013) -- While the effects of acute stroke have been widely studied, brain damage during the subacute phase of stroke has been a neglected area of research. Now, a new study by the University of South Florida reports that within a week of a stroke caused by a blood clot in one side of the brain, the opposite side of the brain shows signs of microvascular injury.

Stroke is a leading cause of death and disability in the United States, and increases the risk for dementia.

Do salamanders hold the solution to regeneration?

Salamanders' immune systems are key to their remarkable ability to regrow limbs, and could also underpin their ability to regenerate spinal cords, brain tissue and even parts of their hearts, scientists have found.

In research published today in the Proceedings of the National Academy of Sciences researchers from the Australian Regenerative Medicine Institute (ARMI) at Monash University found that when immune cells known as macrophages were systemically removed, salamanders lost their ability to regenerate a limb and instead formed scar tissue.

Study shows how bilinguals switch between languages

Individuals who learn two languages at an early age seem to switch back and forth between separate "sound systems" for each language, according to new research conducted at the University of Arizona.

The research, to be published in a forthcoming issue of Psychological Science, a journal of the Association for Psychological Science, addresses enduring questions in bilingual studies about how bilingual speakers hear and process sound in two different languages.

Study supports 'aggressive' treatment for posterior fossa hematoma in newborns

New American Chemical Society video: Why toothpaste + orange juice = yuk!

What is it about toothpaste that transforms the sweet flavor of orange juice into something so bitter? For the solution to that mysterious sensory phenomenon — in colorful, animated detail — check the latest episode of the American Chemical Society's award-winning Bytesize Science video series at http://www.BytesizeScience.com

First long-term study reveals link between childhood ADHD and obesity

A new study conducted by researchers at the Child Study Center at NYU Langone Medical Center found men diagnosed as children with attention-deficit/hyperactivity disorder (ADHD) were twice as likely to be obese in a 33-year follow-up study compared to men who were not diagnosed with the condition. The study appears in the May 20 online edition of Pediatrics.

Fossil brain teaser

A new study conducted at the University of Bristol and published online today in the Journal of Evolutionary Biology sheds light on how the brain and inner ear developed in dinosaurs.

Stephan Lautenschlager from Bristol's School of Earth Sciences, together with Tom Hübner from the Niedersächsische Landesmuseum in Hannover, Germany, picked the brains of 150 million year old dinosaurs.

Ketamine shows significant therapeutic benefit in people with treatment-resistant depression

Patients with treatment-resistant major depression saw dramatic improvement in their illness after treatment with ketamine, an anesthetic, according to the largest ketamine clinical trial to-date led by researchers from the Icahn School of Medicine at Mount Sinai. The antidepressant benefits of ketamine were seen within 24 hours, whereas traditional antidepressants can take days or weeks to demonstrate a reduction in depression.

For combat veterans suffering from post-traumatic stress disorder, 'fear circuitry' in the brain never rests

NEW YORK, May 18, 2013. Chronic trauma can inflict lasting damage to brain regions associated with fear and anxiety. Previous imaging studies of people with post-traumatic stress disorder, or PTSD, have shown that these brain regions can over-or under-react in response to stressful tasks, such as recalling a traumatic event or reacting to a photo of a threatening face. Now, researchers at NYU School of Medicine have explored for the first time what happens in the brains of combat veterans with PTSD in the absence of external triggers.