Jan 062006
 

Astrocytes, also known as astroglia, are star-shaped cells in the brain whose function and importance has never been fully understood by neuroscientists. Once thought to be housekeeping cells under the control of neurons, LiveScience.com is reporting today that researchers have found that astrocytes can directly and independently perform the critical function of controlling blood flow in the brain. This discovery could influence how brain scans are interpreted and may lead to breakthroughs in understanding and treating brain injuries and neurological diseases.

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Nov 282005
 
Brain image scan

source: MIT

LiveScience.com is reporting that a new brain-imaging study performed by researchers at MIT has concluded that if you predict a memory will need to be recalled as you store that memory, you will in fact be able to remember it better later. In other words, people who make more accurate memory predictions are better learners. The opportunity for prediction does not only occur during the initial learning stage, but rather is a continuous process by which the subconscious monitors the brain to determine if something is known as well as it should be. Better learners will intuitively react to the feedback from this monitoring process and review information that is flagged as not properly understood or memorized.

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