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Latest Cerebral cortex Stories

2011-03-09 14:14:59

New study reveals that 'categorical' information is processed by the right hemisphere Consider the simple situation in which you are walking around the kitchen and decide to pick up your own cup of tea, which is identical to others lying on the table. Your brain chooses the correct cup of tea by using different types of information that you have stored about the position of the cup in relation to the kitchen table. The information can be represented in qualitative terms (left, right, above,...

2011-02-25 19:20:17

A study led by Academy Research Fellow Eleanor Coffey identifies new players that put the brakes on A study led by Academy Research Fellow Eleanor Coffey identifies new players that put the brakes on. They show in mice that lack the star player "JNK1", that newborn neurons spend less time in the multipolar stage, which is when the cells prepare for subsequent expedition, possibly choosing the route to be taken. Having hurried through this stage, they move off at high speed to reach their...

2011-02-23 01:38:25

The Stripe of Gennari develops even in those who are blind from birth and does not degenerate, despite a lack of visual input. This was discovered by Robert Trampel and colleagues from the Max Planck Institute for Human Cognitive and Brain Sciences using magnetic resonance imaging. This bundle of nerve fibers, which is approximately 0.3 mm thick, is not exclusively responsible for optic information. In the blind, it might play a greater role in processing tactile stimuli. This could...

2011-02-18 13:20:05

Sonja Kotz investigates how neural rhythm processing shapes the way we communicate Sonja Kotz leads the Minerva research group "Neurocognition of Rhythm in Communication" at the Max Planck Institute for Human Cognitive and Brain Sciences in Leipzig. She will present evidence from neuroimaging on the impact of cognitive functions on bilingual processing at the AAAS symposium "Crossing Borders in Language Science: What Bilinguals Tell Us About Mind and Brain". Rhythm, as the recurrent...

2011-01-31 14:33:51

New study points to a specific brain network that acts as an event monitoring system Wouldn't life be easy if everything happened as we anticipated? In reality, our brains are able to adapt to the unexpected using an inbuilt network that makes predictions about the world and monitors how those predictions turn out. An area at the front of the brain, called the orbitofrontal cortex, plays a central role and studies have shown that patients with damage to this area confuse memories with reality...

2011-01-24 15:46:20

Surprising rate at which neuronal networks in the cerebral cortex delete sensory information The dynamics behind signal transmission in the brain are extremely chaotic. This conclusion has been reached by scientists from the Max Planck Institute for Dynamics and Self-Organization at the University of Göttingen and the Bernstein Center for Computational Neuroscience Göttingen. In addition, the Göttingen-based researchers calculated, for the first time, how quickly information...

2011-01-04 13:44:34

Normally, cortical nerve cells or neurons reside in the brain's gray matter with only a few scattered neurons in the white matter, but some people with schizophrenia have a higher number of neurons in the white matter. Neuronal migration errors may arise in schizophrenia as a consequence of both genetic and environmental factors. The phenomenon of aberrant cellular localization has now been studied in detail in a paper by Yang and colleagues, published in the current issue of Biological...

2010-12-23 01:56:18

Research from York University is revealing which regions in the brain "fire up" when we suppress an automatic behaviour such as the urge to look at other people as we enter an elevator. A York study, published recently in the journal Frontiers in Human Neuroscience, used fMRI (functional Magnetic Resonance Imaging) to track brain activity when study participants looked at an image of a facial expression with a word superimposed on it. Study participants processed the words faster than the...

2010-12-15 14:27:54

Study shows sensory feedback gives monkeys better control of computer cursors Monkeys moved thought-controlled computer cursors more quickly and accurately when provided with additional sensory feedback, according to a new study in the Dec. 15 issue of The Journal of Neuroscience. While most brain-machine technologies rely only on visual feedback, this study demonstrated that these systems can be improved when users have additional input, such as a sense of the arm's position and motion, a...

2010-12-08 15:01:30

The brain's visual neurons continually develop predictions of what they will perceive and then correct erroneous assumptions as they take in additional external information, according to new research done at Duke University. This new mechanism for visual cognition challenges the currently held model of sight and could change the way neuroscientists study the brain. The new vision model is called predictive coding. It is more complex and adds an extra dimension to the standard model of sight....


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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