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Sci. Aging Knowl. Environ., 8 January 2003
Vol. 2003, Issue 1, p. or1

OTHER RESOURCES

Newborn Neurons Search for Meaning

Marcia Barinaga

http://sageke.sciencemag.org/cgi/content/abstract/sageke;2003/1/or1

Abstract: Science 299, 32-34 (2003).

Some brain regions are replenished with new cells throughout life, but researchers aren't sure what the newcomers contribute to the behaviors those brain regions control, which include singing, smelling, and learning. A number of experiments, including one on page 117 that identifies prolactin, a hormone that increases during pregnancy, as a neurogenesis trigger, have suggested that the new neurons might boost learning. The evidence has been correlational, however, and it doesn't all agree.

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Science of Aging Knowledge Environment. ISSN 1539-6150