When the researchers stopped administering the suppressant, the rats quickly regained their ability to form memories. It is not clear how the new cells help in memory formation. These are among the questions Gould and colleagues are pursuing in their ongoing research. A more thorough understanding of how the brain forms memories should help medical researchers tackle disorders that involve memory loss, such as Alzheimer's disease, perhaps by designing treatments that stimulate the production of new neurons. The Bulletin is published weekly during the academic year, except during University breaks and exam weeks, by the Office of Communications, Princeton University, Princeton, NJ 08544.
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