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Latest Dendritic spine Stories

2014-01-24 11:52:18

Breakthrough allows Einstein scientists to probe how memories form in nerve cells In two studies in the January 24 issue of Science, researchers at Albert Einstein College of Medicine of Yeshiva University used advanced imaging techniques to provide a window into how the brain makes memories. These insights into the molecular basis of memory were made possible by a technological tour de force never before achieved in animals: a mouse model developed at Einstein in which molecules crucial...

Scientists Demonstrate Ability to Erase Memories
2013-09-10 17:21:45

[ Watch the Video: Wiping Out Bad Memories ] Brett Smith for redOrbit.com – Your Universe Online In the film Eternal Sunshine of the Spotless Mind, Jim Carrey played a man who had his brain scrubbed of painful memories – only to have them eventually come back to haunt him. While the selective deletion of memories may sound like science fiction, neuroscientists from The Scripps Research Institute have demonstrated just that in mice and rats, according to their report in the...

Cocaine Rapidly Rewires Brain
2013-08-26 10:11:02

Michael Harper for redOrbit.com - Your Universe Online When mice are introduced to cocaine, the neurons in their brains become rapidly rewired to begin looking for the drug, even it if means not eating. Researchers from California now say this discovery could explain the first steps of addiction in humans. Armed with a microscope, some mice and a small amount of cocaine, the researchers introduced the animals to the drug and measured the growth of high-level brain circuits inside the...

2012-02-20 13:52:58

Researchers track structural changes during formation of new memories New connections between brain cells emerge in clusters in the brain as animals learn to perform a new task, according to a study published in Nature on February 19 (advance online publication). Led by researchers at the University of California, Santa Cruz, the study reveals details of how brain circuits are rewired during the formation of new motor memories. The researchers studied mice as they learned new behaviors,...

Mouse Study Sheds Light On Controlling Hunger
2012-02-08 14:40:15

Researchers have revealed that the neural circuits controlling hunger and eating behaviors are also controlled by plasticity. They found that during fasting, the AgRP neurons that drive feeding behaviors actually undergo anatomical changes that cause them to become more active. This effect results in these neurons "learning" to be more responsive to hunger-promoting neural stimuli. "The role of plasticity has generally not been evaluated in neuronal circuits that control feeding...

Wake-sleep Patterns Affect Brain Synapses During Adolescence
2011-10-10 04:39:10

An ongoing lack of sleep during adolescence could lead to more than dragging, foggy teens, a University of Wisconsin-Madison study suggests. Researchers have found that short-term sleep restriction in adolescent mice prevented the balanced growth and depletion of brain synapses, connections between nerve cells where communication occurs. "One possible implication of our study is that if you lose too much sleep during adolescence, especially chronically, there may be lasting consequences...

Breakthrough Brain Study Reveals Stress Code
2011-10-04 04:43:18

Neuroscience team discovers new player in how brain deals with stress Neuroscientists investigating the 'brain code' claim to have made a significant step forwards in understanding how the brain deals with stress- and mitigates its impact. Examining what they term 'thin' and 'mushroom-like' parts of nerve cells in the brain, which are responsible for learning and remembering, they discovered that it is possible to alter what is remembered — thereby mitigating the stress of painful...

2011-09-13 12:13:23

The mechanism which adjusts how to receive a signal in coordination with dendritic morphology has been revealed Neurons in the brain play a role as an electric wire conveying an electrical signal. Because this electric wire is connected with various joints (synapse), various brain functions can occur. A neuron which has dendritic trees on it, receives the signals with many synapses located on those dendritic trees, and carries out functions by combining the received signals. The research...


Word of the Day
penuche
  • A fudgelike confection of brown sugar, cream or milk, and chopped nuts.
'Penuche' is a variant of 'panocha,' a coarse grade of sugar made in Mexico. 'Panocha' probably comes from the Spanish 'panoja, panocha,' ear of grain.
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