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Tag: "brain" at biology news

Neural bottleneck found that thwarts multi-tasking

...chology, asked. "For example, what is it about our brain that gives us such a hard time at being able to dr... thought that a central "bottleneck" exists in the brain that prevents us from doing two things at once. Dux and Marois are the first to identify the regions...

Inhibiting blood to save the brain

...ith the accumulation of fibrinogen deposits in the brain of human MS patients. In this study, Akassoglou an...ant. Fibrinogen activates macrophage cells in the brain called microglia, causing inflammation which damages myelin. The scientists sought to design a th...

Making mice with enhanced color vision

... own can acquire new color vision, a sign that the brain can adapt far more rapidly to new sensory information than anticipated. This work, appearing March 23 in Science, also suggests that when the first ancestral primate inherited a new type of photoreceptor more than 40 million years ago, it probably ...

Do you hear what i see?

... smell are each processed in distinct areas of the brain and only later integrated. The new research, led by Christoph Kayser, PhD, at the Max Planck Institute for Biological Cybernetics in Tübingen, Germany, was published in the February 21 issue of The Journal of Neuroscience . "This study confirms t...

Pregnancy hormone key to repairing nerve cell damage

...al mechanism that produces new myelin in the adult brain and spinal cord and identifies prolactin as a potential therapeutic substance for future testing in people with MS. "Agents promoting remyelination will be beneficial not only for typical demyelinating diseases like MS," says Dr. Fred (Rusty) Gag...

Experience affects new neuron survival in adult brain; study sheds light on learning, memory

...n the early development of new neurons in specific brain regions affects their survival and activity in the...perience enhances the survival of new neurons in a brain area called the dentate gyrus, and that more of these new neurons were activated when exposed to the...

Study of planarians offers insight into germ cell development

... ?in most cases ?gonads. Even when the planarian’s brain is severed from its body, it can regenerate all that is removed, including the reproductive organs. In a new study published this month in the Proceedings of the National Academy of Sciences, Newmark and his colleagues at the U. of I. report that ...

Ultrasound upgrade produces images that work like 3-D movies

...served by the left and right eyes, Smith said. The brain processes the information to produce a sense of depth, a phenomenon that can't be achieved when viewing a single, flat image. Stereoscopic images solve that problem by taking two "snapshots" of the same object from slightly different angles, mimic...

Boosting brain power -- with chocolate

...k chocolate ?boosts blood flow to key areas of the brain for two to three hours. Increased blood flow to these areas of the brain may help to increase performance in specific tasks and boost general alertness over a short period. ...

Motor protein plays key role in connecting neurons

...evelopment," she says and errant growth can impair brain wiring or connectivity. "Myosin X gets the DCC re... intuitively know how to move. The process enables brain cells to reach out to each other and across the midline of the developing brain and spinal cord. Whe...

Scientists unravel clue in cortisol production

...research, which increases understanding of how the brain and the endocrine system work together to regulate health, appears in the February issue of the journal Molecular Endocrinology. Turning cholesterol into the stress hormone cortisol involves many reactions and begins when the hypothalamus sends a ...

Ladybugs may be cute, but watch out when they get near wine

...mber of the human genus, with a surprisingly small brain and distinctly protruding jaw, features commonly a...g a vertical facial profile and a relatively large brain ?an interpretation widely accepted until now. Dr. Bromage"s reconstruction also suggests that h...

Man's earliest direct ancestors looked more apelike than previously believed

...mber of the human genus, with a surprisingly small brain and distinctly protruding jaw, features commonly a...g a vertical facial profile and a relatively large brain ?an interpretation widely accepted until now. Dr. Bromage"s reconstruction also suggests that h...

'Juiced-up' battery fueled by sugar could power small portable electronics

...this. Social-psychologist Veling proved that the brain selects incoming information to remember useful th...ords. Veling adapted this test to determine if the brain actually suppresses the distraction. Mango Veling asked study subjects to remember words th...

Morphine makes lasting -- and surprising -- change in the brain

...wn here that morphine makes lasting changes in the brain by blocking a mechanism that’s believed to be the ...d Biotechnology at Brown, is interested in how the brain stores information. Long-term potentiation, or LTP, is critical to this process. In LTP, connecti...

Molecular tools make the cut

...this. Social-psychologist Veling proved that the brain selects incoming information to remember useful th...ords. Veling adapted this test to determine if the brain actually suppresses the distraction. Mango Veling asked study subjects to remember words th...

Brain fends off distractions

...this. Social-psychologist Veling proved that the brain selects incoming information to remember useful th...ords. Veling adapted this test to determine if the brain actually suppresses the distraction. Mango Veling asked study subjects to remember words th...

Army research mission focused on autism

... diagnosed with autism. Autism is a developmental brain disorder that affects as many as 1 in 150 children as reported by the Centers for Disease Control. Alterations in health and behavior vary widely from mild to severe, leading to their general classification as Autism Spectrum Disorders. About 10 perc...

New dopamine brain target discovered

...pamine receptors, this novel unit will only create brain signals when both receptors are stimulated at the ...n. As calcium has a profound effect on almost all brain function, this rise in calcium causes a cascade of events in the brain. This is the first time that...

Brown team finds crucial protein role in deadly prion spread

...us proteins, creating the "seeds" that allow fatal brain illnesses to quickly spread, new Brown University ...trange, self-replicating proteins that cause fatal brain diseases ?convert healthy protein into abnormal protein through an ultrafast process. This good-g...

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