Understanding the Brain
Here's even more evidence that physical fitness can help your brain: Canadian researchers have found that stroke survivors experience better memory , thinking and language skills with six months of exercise. Exercise After Stroke Could Help Improve Memory: Study
Who’s conscious? – Pharyngula A recent meeting of neuroscientists tried to define a set of criteria for that murky phenomenon called “consciousness”.
Rat Study Shows Early Mental Training May Aid Later Brain Function By Rick Nauert PhD Senior News Editor Reviewed by John M. Grohol, Psy.D. on August 23, 2012
Neurons Produced Via Adult Cells - Health News October 5, 2012
Brain Damaged ‘Patient R’ Challenges Theories of Self Awareness According to some theories on how self-awareness arises in the brain, Patient R, a man who suffered a severe brain injury about 30 years ago, should not possess this aspect of consciousness.
(Medical Xpress) -- The brain has billions of neurons, arranged in complex circuits that allow us to perceive the world, control our movements and make decisions. Deciphering those circuits is critical to understanding how the brain works and what goes wrong in neurological disorders. Simple mathematical computations underlie brain circuits
Mice Study Suggests Brain Switch Implicated in PTSD By Rick Nauert PhD Senior News Editor Reviewed by John M.
(Medical Xpress) -- When it comes to intelligence, what factors distinguish the brains of exceptionally smart humans from those of average humans? As science has long suspected, overall brain size matters somewhat, accounting for about 6.7 percent of individual variation in intelligence. More recent research has pinpointed the brain’s prefrontal cortex, a region just behind the forehead, as a critical hub for high-level mental processing, with activity levels there predicting another 5 percent of variation in individual intelligence. Now, new research from Washington University in St. Louis suggests that another 10 percent of individual differences in intelligence can be explained by the strength of neural pathways connecting the left prefrontal cortex to the rest of the brain. Published in the Journal of Neuroscience, the findings establish “global brain connectivity” as a new approach for understanding human intelligence. Brain imaging can predict how intelligent you are, study finds
The problem is that the brain is not a computer and can't be. How will we build an artificial human brain?
Scientists use light to control brain with flick of a switch First, cells in the brain itself must be genetically altered so they react to light. Such genetic modification of human cells is still an emerging science and the long term effects are still largely unknown.
How Do You Assemble a Brain? Randomly It is a puzzlement: How do you assemble and wire an information processing device as complex as the mammalian brain? There are roughly 86 billion neurons in a human brain, forming about a quadrillion synapses. A rat’s brain is just one thousandth that size, but still pretty complex, with 56 million neurons and 500 billion synapses.
Paralyzed Rats Learn to Walk Again Paralyzed rats learned to walk again after a combination of electro-chemical stimulation to their injured spines and intensive rehabilitation therapy.
A new study finds that mice have a distinct neural subsystem that links the nose to the brain and is associated with instinctually important smells such as those emitted by predators. Mice have different neural subsystem associated with instinctually important smells
The language of neural cells Imagine if we could understand the language two neurons use to communicate. We might learn something about how thoughts and consciousness are formed. At the very least, our improved understanding of neuron communication would help biologists study the brain with more precision than ever before. Heather Clark, an associate professor of pharmaceutical sciences at Northeastern University, has received a $300,000 Young Faculty Award from the Defense Advanced Research Projects Agency to explore neural cell communication using her expertise in nanosensors. "We were interested in looking into neural cells because of the need to measure chemicals in the brain," she explained. In separate work, Clark had already been developing nanosensors to measure the biochemical environment inside a single neuron.
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