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Latest Long-term potentiation Stories

2011-10-05 19:30:11

Research gives insight into 50-year-old mystery -- zinc important for learning and memory Zinc plays a critical role in regulating how neurons communicate with one another, and could affect how memories form and how we learn. The new research, in the current issue of Neuron, was authored by Xiao-an Zhang, now a chemistry professor at the University of Toronto Scarborough (UTSC), and colleagues at MIT and Duke University. Researchers have been trying to pin down the role of zinc in the...

2011-09-26 15:15:16

Viewing computer images causes long-term changes in nerve cell connections Viewing two-dimensional images of the environment, as they occur in computer games, leads to sustained changes in the strength of nerve cell connections in the brain. In Cerebral Cortex, Prof. Dr. Denise Manahan-Vaughan and Anne Kemp of the RUB Department for Neurophysiology report about these findings. When the researchers presented rats with new spatial environments on a computer screen, they observed long-lasting...

2011-07-07 18:56:06

A person who drinks too much alcohol may be able to perform complicated tasks, such as dancing, carrying on a conversation or even driving a car, but later have no memory of those escapades. These periods of amnesia, commonly known as "blackouts," can last from a few minutes to several hours. Now, at Washington University School of Medicine in St. Louis, neuroscientists have identified the brain cells involved in blackouts and the molecular mechanism that appears to underlie them. They report...

2011-04-13 21:56:15

High levels of a protein associated with chronic, low-grade inflammation in the brain correlate with aspects of memory decline in otherwise cognitively normal older adults, according to a study led by scientists at the University of California, San Francisco. The study is being reported in a poster session at the American Academy of Neurology annual meeting on Wednesday, April 13, 2011. Inflammation is part of the body's natural immune response to tissue damage. However, chronic inflammation...

2011-03-22 08:16:03

(Ivanhoe Newswire) -- Scientists believe that long-term potentiation (LTP) "“ the long-lasting increase of signals across a connection between brain cells -- underlies our ability to remember over time and to learn, but how that happens is a central question in neuroscience. Researchers at Duke University Medical Center have found a cascade of signaling molecules that allows a usually very brief signal to last for tens minutes, providing the brain framework for stronger connections...

2011-03-21 13:10:52

You may remember the color of your loved one's eyes for years. But how? Scientists believe that long-term potentiation (LTP) "“ the long-lasting increase of signals across a connection between brain cells -- underlies our ability to remember over time and to learn, but how that happens is a central question in neuroscience. Researchers at Duke University Medical Center have found a cascade of signaling molecules that allows a usually very brief signal to last for tens of minutes,...

2011-03-18 15:04:08

After disruption, mouse brains shift key functions associated with learning and memory, U-M study finds When Geoffrey Murphy, Ph.D., talks about plastic structures, he's not talking about the same thing as Mr. McGuire in The Graduate. To Murphy, an associate professor of molecular and integrative physiology at the University of Michigan Medical School, plasticity refers to the brain's ability to change as we learn. Murphy's lab, in collaboration with U-M's Neurodevelopment and Regeneration...

2011-01-26 20:38:36

Works only if given during windows of memory malleability A naturally occurring growth factor significantly boosted retention and prevented forgetting of a fear memory when injected into rats' memory circuitry during time-limited windows when memories become fragile and changeable. In the study funded by the National Institutes of Health, animals treated with insulin-like growth factor (IGF-II) excelled at remembering to avoid a location where they had previously experienced a mild shock. "To...

2010-10-04 22:58:35

A researcher from the Faculty of Medicine & Dentistry at the University of Alberta has discovered a mechanism underlying some forms of obesity and addictions which could lead to a treatment for both diseases. When a hungry animal finds food in the wild, it is a rewarding stimulus for the animal and is recognized by the brain by the release of the chemical messenger dopamine. Because narcotics such as cocaine, heroin and amphetamines, and even tasty and highly-caloric foods also cause the...

2010-09-20 16:26:57

Deleting a certain gene in mice can make them smarter by unlocking a mysterious region of the brain considered to be relatively inflexible, scientists at Emory University School of Medicine have found. Mice with a disabled RGS14 gene are able to remember objects they'd explored and learn to navigate mazes better than regular mice, suggesting that RGS14's presence limits some forms of learning and memory. The results were published online this week in the Early Edition of the Proceedings of...


Word of the Day
lambent
  • Licking.
  • Hence Running along or over a surface, as if in the act of licking; flowing over or along; lapping or bathing; softly bright; gleaming.
This word comes the Latin 'lambere,' to lick.
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