Scientists Read Subjects' Location From Brain Scans

Study finds new neurons clear out short-term memory

(NEWSER) - The birth of new brain cells bumps old memories into long-term storage, according to new research which upends earlier theories. Researchers working with rodents found that the creation of new neurons destabilized existing connections in the hippocampus instead of strengthening them as they had expected, effectively "clearing the inbox" and causing short-term memories to be transferred elsewhere in the brain More»

But they're still not sure about the 'why' part

(NEWSER) - From the scariest nightmares to the most bizarre fantasies, some dreams are remembered forever, and a team of Italian scientists knows how. Researchers at L'Aquila and Bologna universities have determined that it's all about the theta waves. If those slow electrical oscillations are present in the cerebral cortex during the REM cycle, the dream is remembered. If not, it's lost forever. These same waves are at work in waking life, when we form an "episodic memory" of events. More»

Sleeping for 90 minutes at midday boosts the brain's ability to learn

(NEWSER) - Taking a nap after lunch helps the brain "reset" and prepare to assimilate new information, researchers say. "It's as though the e-mail inbox in your hippocampus is full and, until you sleep and clear out those fact e-mails, you're not going to receive any more mail," says the author of a new study. "It's just going to bounce until you sleep and move it into another folder." More»

(NEWSER) - If you have trouble remembering who Britney Spears is, there’s some good news and bad news. Good news: You have managed to forget Britney Spears. Bad news: You might be at risk for Alzheimer’s, according to a new study. A team of scientists recently found that people with a high Alzheimer’s risk have to work harder to remember celebrity names. More»

Study records evidence supporting long-suspected memory pathway

(NEWSER) - Scientists for the first time have observed how brain cells drum up a memory, and the findings buttress the notion that our minds don't so much remember events as relive them. When recalling short film clips they had seen, patients' brains repeated the same pattern of neuron activity they experienced while first watching the film, the New York Times reports. More»