Articles with the keyword: 
Short Stressful Events May Improve Working Memory
sea-maid submitted, created time 7 months 3 weeks (www.buffalo.edu)
Experiencing chronic stress day after day can produce wear and tear on the body physically and mentally, and can have a detrimental effect on learning and emotion. However, acute stress -- a short stressful incident -- may enhance learning and memory. 
Caltech scientists reveal how neuronal activity is timed in brain's memory-making circuits
piggy submitted, created time 9 months 2 weeks (www.eurekalert.org)
Theta oscillations are a type of prominent brain rhythm that orchestrates neuronal activity in the hippocampus, a brain area critical for the formation of new memories. For several decades these oscillations were believed to be "in sync" across the hippocampus, timing the firing of neurons like a sort of central pacemaker. A new study conducted by researchers at the California Institute of Technology (Caltech) argues that this long-held assumption needs to be revised
How the brain translates memory into action
piggy submitted, created time 10 months 3 weeks (www.eurekalert.org)
When we emerge from a supermarket laden down with bags and faced with a sea of vehicles, how do we remember where we've parked our car and translate the memory into the correct sequence of footsteps and shifts of weight to get back to it? A paper in this week's PLoS Biology identifies the specific parts of the brain responsible for solving this everyday problem. These results could have implications for understanding the functional significance of a prominent brain abnormality observed in neuropsychiatric diseases such as schizophrenia
New findings resolve long dispute about how Alzheimer's disease might kill brain cells
piggy submitted, created time 11 months 4 days (www.eurekalert.org)
For a decade, Alzheimer's disease researchers have been entrenched in debate about one of the mechanisms believed to be responsible for brain cell death and memory loss.
Now researchers at the University of Michigan and the University of California, San Diego have settled the dispute. Resolving this controversy improves understanding of the disease and could one day lead to better treatments
Forget it! A biochemical pathway for blocking your worst fears?
piggy submitted, created time 11 months 3 weeks (www.eurekalert.org)
A receptor for glutamate, the most prominent neurotransmitter in the brain, plays a key role in the process of "unlearning," report researchers at the Salk Institute for Biological Studies. Their findings, published in the current issue of the Journal of Neuroscience, could eventually help scientists develop new drug therapies to treat a variety of disorders, including phobias and anxiety disorders, particularly post-traumatic stress disorder.
"Most studies focus on 'learning,' but the 'unlearning' process is probably just as important and much less understood," says Stephen F
Eternal Sunshine of the Murine Mind
piggy submitted, created time 1 year 1 week (sciencenow.sciencemag.org)
The bad memories instilled by a car accident or other traumatic event are best forgotten. That might soon be possible, now that researchers have identified neurons in mice that store fearful memories and have found a way to wipe these memories clean.
Fearful memories are housed within a region of the brain called the lateral amygdala (LA). When something scary happens, LA neurons produce higher levels of a protein called CREB (cyclic adenosine monophosphate response element-binding protein)
Precise Communication Discovered Across Brain Areas During Sleep
sea-maid submitted, created time 1 year 1 week (www.sciencedaily.com)
By listening in on the chatter between neurons in various parts of the brain, researchers from the California Institute of Technology (Caltech) have taken steps toward fully understanding just how memories are formed, transferred, and ultimately stored in the brain--and how that process varies throughout the various stages of sleep.
Blood test predicts chance of dementia
piggy submitted, created time 1 year 2 weeks (www.eurekalert.org)
Frontal lobe dementia (Frontotemporal Dementia, FTD) strikes people at an earlier age than other forms of dementia. After Alzheimer's disease, FTD is the most common form of dementia in patients under sixty-five. The disease process starts in the frontal lobe, the section of the brain located toward the front of the head, where large numbers of brain cells begin to die off.
Among other things, the frontal lobe is involved in regulating behavior, movement and mood. It is also responsible for cognitive functions such as language
Forgotten and lost - when proteins shut down our brains
piggy submitted, created time 1 year 1 month (www.mpg.de)
Coordination becomes difficult, items disappear, keeping new information in the mind is impossible. Worldwide almost 30 million people suffer from Alzheimer’s disease, a neurodegenerative, irreversible ailment which starts with memory gaps and ends in helplessness and the loss of personality. The most critical factor in developing Alzheimer’s disease is age. Most cases occur after the age of 65.
Two hallmarks are typical for Alzheimer affected brains
Why Sleep Is Needed to Form Memories
piggy submitted, created time 1 year 1 month (www.sciencedaily.com)
If you ever argued with your mother when she told you to get some sleep after studying for an exam instead of pulling an all-nighter, you owe her an apology, because it turns out she's right. And now, scientists are beginning to understand why.
In research published recently in Neuron, Marcos Frank, PhD, Assistant Professor of Neuroscience, at the University of Pennsylvania School of Medicine, postdoctoral researcher Sara Aton, PhD, and colleagues describe for the first time how cellular changes in the sleeping brain promote the formation of memories.
sea-maid submitted, created time 1 year 1 month (www.nature.com)
A mother's early experiences in life may shape the memories of her children. Providing mice with a stimulating environment can prevent or reverse memory problems, and mother mice can pass these protections on to their pups even if they do not experience the stimulating environments themselves. This involves no known changes to the mice's DNA.
Short RNAs protect chemical memory of genes
sea-maid submitted, created time 1 year 1 month (www.nature.com)
Short RNA molecules preserve chemical changes to the DNA that regulates plant genes — allowing epigenetic changes to be maintained across generations, researchers have found.
Food and memory: Does less of one mean more of the other?
Darkfrog submitted, created time 1 year 1 month (sciencenow.sciencemag.org)
This writeup in Science magazine discusses the possibility that extremely low-calorie diets may improve memory (or at least diminish fuzziness), particularly among the elderly. All of the participants in this trial were over sixty and--possibly significantly--already overweight.
I wonder if caloric restriction would have the same memory-improving effects on people who were not already overweight. Perhaps it is approaching one's ideal weight that does the trick.
MRI Brain Scans Accurate in Early Diagnosis of Alzheimer's Disease
piggy submitted, created time 1 year 2 months (www.sciencedaily.com)
JOURNAL: ScienceDaily
DESCRIPTION: MRI scans that detect shrinkage in specific regions of the mid-brain attacked by Alzheimer’s disease accurately diagnose the neurodegenerative disease, even before symptoms interfere with daily function, a study by the Florida Alzheimer’s Disease Research Center (ADRC) in Miami and Tampa found.
The study, reported earlier this month in the journal Neurology, adds to a growing body of evidence indicating MRI brain scans provide valuable diagnostic information about Alzheimer’s disease
Recovering memories that never left
sea-maid submitted, created time 1 year 3 months (www.sciencenews.org)
There may be no single, simple explanation for reports of recovered memories of childhood sexual abuse. Witness the first evidence that people who report such recall display either of two cognitive profiles, one signaling a susceptibility to retrieving false memories and the other a tendency to have forgotten earlier recollections of actual abuse
abuse@discover8.com
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