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17 April 2014 12:48 pm ,
Vol. 344 ,
Officials last week revealed that the U.S. contribution to ITER could cost $3.9 billion by 2034—roughly four times the...
An experimental hepatitis B drug that looked safe in animal trials tragically killed five of 15 patients in 1993. Now,...
Using the two high-quality genomes that exist for Neandertals and Denisovans, researchers find clues to gene activity...
A new report from the Intergovernmental Panel on Climate Change (IPCC) concludes that humanity has done little to slow...
Astronomers have discovered an Earth-sized planet in the habitable zone of a red dwarf—a star cooler than the sun—500...
Three years ago, Jennifer Francis of Rutgers University proposed that a warming Arctic was altering the behavior of the...
- 17 April 2014 12:48 pm , Vol. 344 , #6181
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Brain Region May Be Key to Social Memory
25 February 2014 2:00 pm
If you have a hard time remembering whether you’ve met someone before, a little-studied region of the hippocampus, a brain area involved in memory and learning, may be to blame. Using genetically altered mice in which activity in this region, called CA2, could be selectively turned down, scientists measured how the rodents responded to both familiar and unfamiliar mice. Inhibited mice showed an abnormal lack of curiosity about new mice, suggesting that they might not have been able to distinguish new mice from strangers, the team reported this week in Nature. The researchers believe the findings could shed light on disorders that involve similar deficits in social memory, such as autism and schizophrenia.
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