Saturday, May 02, 2015

Memory

New insight into how the brain makes memories
April 28, 2015

filapodia 
Linked to autism and Alzheimer’s disease
Every time you make a memory, somewhere in your brain a tiny filament called a dendritic spine reaches out from one neuron and forms an electrochemical connection to a neighboring neuron. Now a team of biologists at Vanderbilt University has discovered more about how these connections are formed at the molecular and cellular level. In … more…


Neurons constantly rewrite their DNA to store information
April 28, 2015

Images of mouse neurons from the hippocampal region of the brain. Levels of the surface receptor GluR1, orange, are shown in unmodified neurons, left, and in those with increased levels of Tet3, right (credit: Huimei Yu, Johns Hopkins Medicine) 
May be a key to brain disorders
Johns Hopkins and UCLA scientists have discovered that neurons use minor “DNA surgeries” to control their activity levels all day, every day. Since these activity levels are important in learning, memory and brain disorders, the researchers think their finding will shed light on a range of important questions. “We used to think that once a … more…


DARPA aims to improve memory skills
April 28, 2015

RAM graphic (credit: DARPA) 
Research may also help civilians deal with an increasingly information-dense world
A new DARPA research program called Restoring Active Memory Replay (RAM Replay) aims to investigate the role of neural “replay” in the formation and recall of memory. The goal is to help individuals better remember specific episodic events and learned skills. The military application is to improve rehabilitation and recovery for injured warfighters challenged by … more…

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