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While earlier studies have supported the idea that sleep aids in memory consolidation, Wamsley said that the team was particularly interested in studies where rodents showed identical patterns of neural activity both when navigating through a maze and when sleeping afterward. The researchers, led by Medical School psychiatry professor Robert A. Stickgold, sought to investigate this phenomenon in humans...

Author: By Victoria J. Benjamin, CONTRIBUTING WRITER | Title: Study Links Dreaming to Increased Memory Performance | 4/27/2010 | See Source »

Liane L. Young ’04, one of the co-authors of the report, sees these results as possible evidence for a biological account of the way we determine right and wrong. “Morality could be decomposed into these specific neural and cognitive processes,” she said, referring to intention versus outcome...

Author: By Victoria J. Benjamin, CONTRIBUTING WRITER | Title: Of Morals And Magnets | 4/8/2010 | See Source »

ALLAN ROPPER, a Boston neurologist, warning against equating neural activity with cognition after a study claimed that patients in a vegetative state can signal yes or no via brain imaging...

Author: /time Magazine | Title: Verbatim | 2/22/2010 | See Source »

...purpose of the scans was to compare the relative levels of spontaneous neural activity in two key brain regions involved in memory - the hippocampus and visual cortex - during rest, both before and after the visual tasks. The NYU team noticed that levels of activity in the two areas were more closely correlated several minutes after people had looked at the images than before they started the experiment. That suggests that the visual-learning tasks had affected the brain's seemingly random firings during rest, and perhaps that the brain was conducting memory-consolidating activity during that time...

Author: /time Magazine | Title: Studies: An Idle Brain May Be Ripe for Learning | 1/29/2010 | See Source »

...occurs after the completion of a mental task is just a ripple or echo effect, rather than a distinct event that helps solidify memories. Harvard researcher Dale Stevens believes he has more or less ruled out the former possibility by showing that even tasks that produce similar levels of neural activity while they are being performed, such as recognizing a face versus a landscape, result in different levels of activity after each task is completed. In Stevens' studies, brain activity remained high after people viewed landscapes, but was much lower after they looked at faces. People tend to be much...

Author: /time Magazine | Title: Studies: An Idle Brain May Be Ripe for Learning | 1/29/2010 | See Source »

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