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Latest Cerebral cortex Stories

2011-04-28 21:18:24

The size and shape of the human cerebral cortex, an evolutionary marvel responsible for everything from Shakespeare's poetry to the atomic bomb, are largely influenced by mutations in a single gene, according to a team of researchers led by the Yale School of Medicine and three other universities. The findings, reported April 28 in the American Journal of Human Genetics, are based on a genetic analysis of in one Turkish family and two Pakistani families with offspring born with the most...

2011-04-25 12:49:35

By shedding new light on how cells migrate in the developing brain, researchers at Fred Hutchinson Cancer Research Center also may have found a new mechanism by which other types of cells, including cancer cells, travel within the body. The findings by Jonathan Cooper, Ph.D., member and director of the Hutchinson Center's Basic Sciences Division, and Yves Jossin, Ph.D., a research fellow in Cooper's laboratory, published online April 24 in Nature Neuroscience, could lead to a better...

2011-04-13 21:38:10

Model of Rett syndrome suggests a deficit in processing cues from the environment Rett syndrome, a neurodevelopmental disorder on the autism spectrum, is marked by relatively normal development in infancy followed by a loss of loss of cognitive, social and language skills starting at 12 to 18 months of age. It is increasingly seen as a disorder of synapses, the connections between neurons that together form brain circuits. What hasn't been clear is why children start out developing normally,...

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2011-04-11 05:45:00

Scientists are developing a technique to map both the connections and functions of nerve cells in the brain together for the first time, bringing them closer to creating a computer model of the human brain. An emerging area of research in neuroscience known as 'connectomics' has parallels to genomics, which maps our genetic make-up. Connectomics aims to detail the brain's synapses and plot how information travels through the brain. Understanding how perceptions, sensations and thoughts are...

2011-03-25 18:32:22

Revelation sheds light on our most ancient sense Researchers seeking to unravel the most ancient yet least understood of the five senses "“ smell "“ have discovered a previously unknown step in how odors are detected and processed by the brain. The four year study, focusing on how mice respond to odors, showed that smells are picked up by the olfactory bulb "“ the first stop on the way to the brain "“ then sent to the olfactory cortex for further analysis. But...

2011-03-23 20:41:03

A new study is providing fascinating insight into how projections conveying sensory information in the brain are guided to their appropriate targets in different species. The research, published by Cell Press in the March 24 issue of the journal Neuron, reveals a surprising new evolutionary scenario that may help to explain how subtle changes in the migration of "guidepost" neurons underlie major differences in brain connectivity between mammals and nonmammalian vertebrates. The neocortex...

2011-03-23 03:32:05

In the cerebral cortex, the balance between excitation (pyramidal neurons) and inhibition (interneurons) is thought to be mediated by the primary mode of neuronal communication: "all-or-none" action potentials, or spikes. However, Dr. Yousheng Shu's research group at the Institute of Neuroscience of Chinese Academy of Sciences has discovered a new strategy by which the cortex can maintain this balance, by showing that the amount of inhibition depends on the membrane potentials (Vm) in...

2011-03-16 14:49:04

Their brains rewire the part of the mind associated with sight to process sound Dr. Olivier Collignon of the University of Montreal's Saint-Justine Hospital Research Centre compared the brain activity of people who can see and people who were born blind, and discovered that the part of the brain that normally works with our eyes to process vision and space perception can actually rewire itself to process sound information instead. The research was undertaken in collaboration with Dr Franco...

2011-03-09 16:30:22

The brain is a black box. A complex circuitry of neurons fires information through channels, much like the inner workings of a computer chip. But while computer processors are regimented with the deft economy of an assembly line, neural circuits are impenetrable masses. Think tumbleweed. Researchers in Harvard Medical School's Department of Neurobiology have developed a technique for unraveling these masses. Through a combination of microscopy platforms, researchers can crawl through the...

2011-03-09 14:32:25

New research reveals the brain networks involved in recognizing people Human social interactions are shaped by our ability to recognize people. Faces and voices are known to be some of the key features that enable us to identify individual people, and they are rich in information such as gender, age, and body size, that lead to a unique identity for a person. A large body of neuropsychological and neuroimaging research has already determined the various brain regions responsible for face...


Latest Cerebral cortex Reference Libraries

Brain
2013-03-05 13:54:00

Formation and Orientation The development of the brain is broken down into stages. The basic evolution begins in the third week of the embryonic process where the neural plate is formed. By week four, the neural plate has developed into the neural tube. The anterior part of the tube, the telencephalon, grows rapidly as it prepares to later give way to the brain. As time goes on, cells begin to classify themselves as either neurons or glial cells, thus determining their functions. Glial...

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