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Vol. 299, Issue 2, 401-407, November 2001
Division of Molecular Psychiatry, Abraham Ribicoff Research
Facilities, Department of Psychiatry, Yale University School of
Medicine, Connecticut Mental Health Center, New Haven, Connecticut
Proliferation and maturation of neurons has been demonstrated to
occur at a significant rate in discrete regions of adult brain,
including the hippocampus and subventricular zone. Moreover, adult
neurogenesis is an extremely dynamic process that is regulated in both
a positive and negative manner by neuronal activity and environmental
factors. It has been suggested to play a role in several important
neuronal functions, including learning, memory, and response to
novelty. In addition, exposure to psychotropic drugs or stress
regulates the rate of neurogenesis in adult brain, suggesting a
possible role for neurogenesis in the pathophysiology and treatment of
neurobiological illnesses such as depression, post-traumatic stress
disorder, and drug abuse. As the mechanisms that control adult
neurogenesis continue to be identified, the exciting prospect of
developing pharmacological agents that specifically regulate the
proliferation and maturation of neurons in the adult brain could be fulfilled.
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