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Latest Computational neuroscience Stories

2012-02-20 13:52:58

Researchers track structural changes during formation of new memories New connections between brain cells emerge in clusters in the brain as animals learn to perform a new task, according to a study published in Nature on February 19 (advance online publication). Led by researchers at the University of California, Santa Cruz, the study reveals details of how brain circuits are rewired during the formation of new motor memories. The researchers studied mice as they learned new behaviors,...

2011-12-22 06:50:30

Innovative machine learning method anticipates neurocognitive changes, similar to predictive text-entry for cell phones, Internet search engines At UCLA's Laboratory of Integrative Neuroimaging Technology, researchers use functional MRI brain scans to observe brain signal changes that take place during mental activity. They then employ computerized machine learning (ML) methods to study these patterns and identify the cognitive state – or sometimes the thought process – of...

Not All Brain Regions Are Created Equal
2011-11-02 04:41:03

Just as the Occupy Wall Street movement has brought more attention to financial disparities between the haves and have-nots in American society, researchers from Indiana University and the University Medical Center Utrecht in The Netherlands are highlighting the disproportionate influence of so called "Rich Clubs" within the human brain. Not all regions of the brain, they say, are created equal. "We've known for a while that the brain has some regions that are 'rich' in the sense of...

2011-10-14 20:39:27

Computer programs used to reveal findings now available free Virtual brains modeling epilepsy and schizophrenia display less complexity among functional connections, and other differences compared to healthy brain models, researchers at Case Western Reserve University School of Medicine report. The researchers worked backward from brain rhythms — the oscillating patterns of electrical activity in the brain recorded on electroencephalograms - from both healthy and ill individuals....

Brain Makes Memories Rhythmically
2011-10-04 04:55:18

The brain learns through changes in the strength of its synapses -- the connections between neurons -- in response to stimuli. Now, in a discovery that challenges conventional wisdom on the brain mechanisms of learning, UCLA neuro-physicists have found there is an optimal brain "rhythm," or frequency, for changing synaptic strength. And further, like stations on a radio dial, each synapse is tuned to a different optimal frequency for learning. The findings, which provide a grand-unified...

Breakthrough Brain Study Reveals Stress Code
2011-10-04 04:43:18

Neuroscience team discovers new player in how brain deals with stress Neuroscientists investigating the 'brain code' claim to have made a significant step forwards in understanding how the brain deals with stress- and mitigates its impact. Examining what they term 'thin' and 'mushroom-like' parts of nerve cells in the brain, which are responsible for learning and remembering, they discovered that it is possible to alter what is remembered — thereby mitigating the stress of painful...

2011-09-15 12:00:11

New model for speech and sound recognition People are adept at recognizing sensations such as sounds or smells, even when many stimuli appear simultaneously. But how the association works between the current event and memory is still poorly understood. Scientists at the Bernstein Center and the Ludwig-Maximilians Universität (LMU) München have developed a mathematical model that accurately mimics this process with little computational effort and may explain...

2011-08-10 22:37:50

The voluntary movements we make must be "prepared" in our brain before they are executed. However, be it perfect timing, a false-start, or a delayed reaction, the neural circuitry underlying movement preparation is not well understood. Now a new study provides intriguing insight into how a neural circuit forms a motor plan. The research, published by Cell Press in the August 11 issue of the journal Neuron, uses a new type of analysis to assess the moment-by-moment firing rate of neurons in...

2011-07-28 18:16:39

Max Planck scientists develop new analytical tools for the fast and accurate reconstruction of neural networks The human brain is the most complex of all organs, containing billions of neurons with their corresponding projections, all woven together in a highly complex, three-dimensional web. To date, mapping this vast network posed a practically insurmountable challenge to scientists. Now, however, a research team from the Heidelberg-based Max Planck Institute for Medical Research has...

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2011-07-22 08:30:00

Molecular soup exhibits brainlike behavior Artificial intelligence has been the inspiration for countless books and movies, as well as the aspiration of countless scientists and engineers. Researchers at the California Institute of Technology (Caltech) have now taken a major step toward creating artificial intelligence"”not in a robot or a silicon chip, but in a test tube. The researchers are the first to have made an artificial neural network out of DNA, creating a circuit of...


Word of the Day
pungle
  • To take pains; labor assiduously with little progress.
This word comes from the Spanish 'pongale,' put it.
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