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Latest Biological neural network Stories

2013-11-05 10:51:33

A paper published in a special edition of the journal Science proposes a novel understanding of brain architecture using a network representation of connections within the primate cortex. Zoltán Toroczkai, professor of physics at the University of Notre Dame and co-director of the Interdisciplinary Center for Network Science and Applications, is a co-author of the paper "Cortical High-Density Counterstream Architectures." Using brain-wide and consistent tracer data, the researchers...

Neuroscientists Discover New ‘Mini-neural Computer’ In The Brain
2013-10-31 07:35:43

University of North Carolina at Chapel Hill School of Medicine Dendrites, the branch-like projections of neurons, were once thought to be passive wiring in the brain. But now researchers at UNC have shown that dendrites actively process information, multiplying the brain’s computing power. The finding could help researchers better understand neurological disorders. Dendrites, the branch-like projections of neurons, were once thought to be passive wiring in the brain. But now...

Snakes Helped Evolution Of High-Quality Vision
2013-10-29 04:52:33

[ Watch the Video: What Do Snakes Have To Do With Vision Evolution? ] redOrbit Staff & Wire Reports - Your Universe Online Neuroscientists from Brazil and Japan have found new evidence in support of a theory that that human ancestors developed high-quality vision as a defense mechanism against the threat of snakes. The study, which was published Monday in the journal Proceedings of the National Academy of Sciences, demonstrated that there are specific nerve cells located in the...

2013-10-15 21:04:49

Scientists at the University of Washington have used genetic engineering to identify a population of neurons that tell the brain to shut off appetite. Their study, "Genetic identification of a neural circuit that suppresses appetite," was published Oct. 13 in Nature. To identify these neurons, or cells that process and transmit information in the brain, researchers first considered what makes an animal lose its appetite. There are a number of natural reasons, including infection, nausea,...

Understanding How Neurons Get Wired
2013-08-15 09:27:33

University of Arizona Two different versions of the same signaling protein tell a nerve cell which end is which, UA researchers have discovered. The findings could help improve therapies for spinal injuries and neurodegenerative diseases. University of Arizona scientists have discovered an unknown mechanism that establishes polarity in developing nerve cells. Understanding how nerve cells make connections is an important step in developing cures for nerve damage resulting from spinal...

2013-08-08 09:52:48

New approaches lead to intricate neural connectivity map Some optical illusions look like they're in motion even though the picture is static. A new map of the fly brain also suggests motion—or at least how the fly sees movement. The new research, published in the August 8 issue of Nature, takes advantage of a high-throughput approach that speeds the charting of neuronal connections involved in motion detection. Neurons snake through the brain, each reaching out and...

2013-07-01 19:01:49

Scientists at Karolinska Institutet in Sweden have identified the neuronal circuits in the spinal cord of mice that control the ability to produce the alternating movements of the legs during walking. The study, published in the journal Nature, demonstrates that two genetically-defined groups of nerve cells are in control of limb alternation at different speeds of locomotion, and thus that the animals' gait is disturbed when these cell populations are missing. Most land animals can walk or...

Protein Modification May Help Control Alzheimer's And Epilepsy
2013-06-03 19:41:06

American Friends of Tel Aviv University In the brain, cell-to-cell communication is dependent on neurotransmitters, chemicals that aid the transfer of information between neurons. Several proteins have the ability to modify the production of these chemicals by either increasing or decreasing their amount, or promoting or preventing their secretion. One example is tomosyn, which hinders the secretion of neurotransmitters in abnormal amounts. Dr. Boaz Barak of Tel Aviv University's Sagol...

Worm EEG Developed To Test The Effects Of Drugs
2013-05-23 12:26:15

[ Watch The Video Worm Brain Reader ] University of Southampton Scientists from the University of Southampton have developed a device which records the brain activity of worms to help test the effects of drugs. NeuroChip is a microfluidic electrophysiological device, which can trap the microscopic worm Caenorhadbitis elegans and record the activity of discrete neural circuits in its 'brain' - a worm equivalent of the EEG. C. elegans have been enormously important in...

2013-03-08 00:47:24

New framework for brain communications offers insight into brain disease, says TAU researcher The transistors and wires that power our electronic devices need to be mounted on a base material known as a "motherboard." Our human brain is not so different – neurons, the cells that transmit electrical and chemical signals, are connected to one another through synapses, similar to transistors and wires, and they need a base material too. But the cells serving that function in the...