Johns Hopkins scientists have discovered a protein that appears to play an important regulatory role in deciding whether stem cells differentiate into the cells that make up the brain, as well as countless other tissues. This finding, published in the April Developmental Cell, could eventually shed light on developmental disorders as well as a variety of conditions that involve the generation of new neurons into adulthood, including depression, stroke, and posttraumatic stress disorder.
Brain
Our 'gut feelings' influence our decisions, overriding 'rational' thought, when we are faced with financial offers that we deem to be unfair, according to a new study. Even when we are set to benefit, our physical response can make us more likely to reject a financial proposition we consider to be unjust.
Conducted by a team from the University of Exeter, Medical Research Council Cognition and Brain Sciences Unit and University of Cambridge, the research is published today (22 May 2012) in the journal Cognitive, Affective, & Behavioural Neuroscience.
New nerve cells formed in a select part of the brain could hold considerable sway over how much you eat and consequently weigh, new animal research by Johns Hopkins scientists suggests in a study published in the May issue of Nature Neuroscience.
New research from the Buck Institute for Research on Aging shows that modifying the scar tissue that develops following a stroke is a promising avenue for future treatments. The need for therapeutics for chronic stroke is compelling. There are 750,000 new strokes per year in the U.S., a leading cause of morbidity and mortality. Aside from physical and occupational therapy, treatments for the six million patients in the U.S. who suffer from chronic stroke are lacking; the vast majority of patients remain in an ongoing state of disability with little hope of return to normal function.
Researchers at The University of Texas at Austin and Washington State University have seen an increased reaction to stress in animals whose ancestors were exposed to an environmental compound generations earlier. The findings, published in the latest Proceedings of the National Academy of Sciences, put a new twist on the notions of nature and nurture, with broad implications for how certain behavioral tendencies might be inherited.
CHICAGO --- A single brief therapy session for adults with a lifelong debilitating spider phobia resulted in lasting changes to the brain's response to fear.
The therapy was so successful, the adults were able to touch or hold a tarantula in their bare hands six months after the treatment, reports a new Northwestern Medicine study.
SEATTLE, May 21, 2012 — Researchers from Seattle Biomedical Research Institute (Seattle BioMed), the University of Copenhagen and the University of Edinburgh have uncovered new knowledge related to host-parasite interaction in severe malaria, concerning how malaria parasites are able to bind to cells in the brain and cause cerebral malaria – the most lethal form of the disease. Three related papers will be published in the May 21 online edition of PNAS (Proceedings of the National Academy of Sciences), a premier scientific journal, highlighting this research.
WEST LAFAYETTE, Ind. - Researchers at Purdue University are working with the U.S. Army and neurosurgeons at the Walter Reed National Military Medical Center to create a new type of "bioactive" coating for stents used to treat brain aneurisms including those caused by head trauma from bomb blasts.
The anterior insular cortex is a small brain region that plays a crucial role in human self-awareness and in related neuropsychiatric disorders. A unique cell type – the von Economo neuron (VEN) – is located there. For a long time, the VEN was assumed to be unique to humans, great apes, whales and elephants. Henry Evrard, neuroanatomist at the Max Planck Institute for Biological Cybernetics in Tübingen, Germany, now discovered that the VEN occurs also in the insula of macaque monkeys.
WASHINGTON — Discipline-based education research (DBER) has generated insights that could help improve undergraduate education in science and engineering, but these findings have not yet prompted widespread changes in teaching practice, says a new report from the National Research Council. Science and engineering faculty, institutions, disciplinary societies, and professional societies should all support high-quality DBER and the adoption of the evidence-based teaching strategies that have emerged from it, the report says.
A substance in human mesenchymal stem cells that promotes growth appears to spur restoration of nerves and their function in rodent models of multiple sclerosis (MS), researchers at Case Western Reserve University School of Medicine have found.
Their study is embargoed until published in the online version of Nature Neuroscience at 1 p.m. U.S. Eastern Standard Time on Sunday, May 20.
How good are married couples at recognizing each other's emotions during conflicts? In general, pretty good, according to a study by a Baylor University researcher. But if your partner is angry, that might tell more about the overall climate of your marriage than about what your partner is feeling at the moment of the dispute.
To learn its signature melody, the male songbird uses a trial-and-error process to mimic the song of its father, singing the tune over and over again, hundreds of times a day, making subtle changes in the pitch of the notes. For the male Bengalese finch, this rigorous training process begins around the age of 40 days and is completed about day 90, just as he becomes sexually mature and ready to use his song to woo females.
ATS 2012, SAN FRANCISCO - Treatment of obstructive sleep apnea (OSA) in children normalizes disturbances in the neuronal network responsible for attention and executive function, according to a new study.
Preliminary results from an ongoing, large-scale study by Yale School of Medicine researchers shows that oxytocin — a naturally occurring substance produced in the brain and throughout the body— increased brain function in regions that are known to process social information in children and adolescents with autism spectrum disorders (ASD).