Posted By News On February 22, 2015 - 7:29pm
Researchers have shown for the first time a pyramid hierarchical network of “coherent gene modules” that regulate glioblastoma genes, involved in a highly aggressive form of brain cancer.
By identifying the most important gene modules responsible for cancer growth and proliferation, the study informs a strategy that could elucidate these modules at the top levels of their network, and in turn be used to identify new drug therapies.
Posted By News On February 21, 2015 - 12:28am
The size of the human brain expanded dramatically during the course of evolution, imparting us with unique capabilities to use abstract language and do complex math. But how did the human brain get larger than that of our closest living relative, the chimpanzee, if almost all of our genes are the same?
Posted By News On February 17, 2015 - 1:52am
Valium, one of the best known antianxiety drugs, produces its calming effects by binding with a particular protein in the brain. But the drug has an almost equally strong affinity for a completely different protein. Understanding this secondary interaction might offer clues about Valium's side effects and point the way to more effective drugs.
Posted By News On February 23, 2015 - 6:55pm
Our brains generate a constant hum of activity: As neurons fire, they produce brain waves that oscillate at different frequencies. Long thought to be merely a byproduct of neuron activity, recent studies suggest that these waves may play a critical role in communication between different parts of the brain.
Posted By News On February 22, 2015 - 6:24pm
The discovery that the human brain continues to produce new neurons in adulthood challenged a major dogma in the field of neuroscience, but the role of these neurons in behavior and cognition is still not clear. In a review article published by Cell Press February 21st in Trends in Cognitive Sciences, Maya Opendak and Elizabeth Gould of Princeton University synthesize the vast literature on this topic, reviewing environmental factors that influence the birth of new neurons in the adult hippocampus, a region of the brain that plays an important role in memory and learning.
Posted By News On February 21, 2015 - 7:30pm
Might living a structured life with regularly established meal times and early bedtimes lead to a better life and perhaps even prevent the onset of mental illness?
That's what's suggested in a study led by Kai-Florian Storch, PhD, of the Douglas Mental Health University Institute and McGill University, titled "A highly tunable dopaminergic oscillator generates ultradian rhythms of behavioral arousal," and published in eLife.
Posted By News On February 17, 2015 - 2:15am
Little animations trying to master a computer game are teaching neuroscience researchers how the brain evolves when faced with difficult tasks.
Neuroscientists at the University of Wisconsin-Madison and Michigan State University have programmed animated critters that they call "animats." The critters have a rudimentary neural system made of eight nodes: two sensors, two motors, and four internal computers that coordinate sensation, movement and memory.
Posted By News On February 16, 2015 - 6:49pm
Northwestern University's David H. Uttal discussed a program that has enhanced students' learning at a variety of levels, from basic spatial reasoning to solving complex problems involving the coordination of numerous variables, such as those involved in climate change.
The program is a partnership between a cognitive scientist and an environmental scientist that facilitates high school students' reasoning about complex real-world scientific and engineering problems through the use of computer-based layered maps.
Posted By News On February 16, 2015 - 5:50pm
Mindfulness meditation practices resulted in improved sleep quality for older adults with moderate sleep disturbance in a clinical trial comparing meditation to a more structured program focusing on changing poor sleep habits and establishing a bedtime routine, according to an article published online by JAMA Internal Medicine.
Posted By News On February 13, 2015 - 7:57pm
Patients who increased doses of opioid medicines to manage chronic pain were more likely to experience an increase in depression, according a new paper in Pain which expands findings in a previous study of Veterans Administration (VA) patients.