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New Neurons Maintain Efficient Stress Recovery

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Presentation on theme: "New Neurons Maintain Efficient Stress Recovery"— Presentation transcript:

1 New Neurons Maintain Efficient Stress Recovery
Maya Opendak, Elizabeth Gould  Cell Stem Cell  Volume 9, Issue 4, Pages (October 2011) DOI: /j.stem Copyright © 2011 Elsevier Inc. Terms and Conditions

2 Figure 1 Young Neurons May Facilitate HPA Axis Shut-Off by Increasing Pattern Separation With new neurons (A), richer representations of different states may be formed in area CA3 (inset A). After a stressor, young neurons in the dentate gyrus (DG) may prevent interference between patterns that signal safety and those that signal danger. Without new neurons (B), discrimination is impaired, as CA3 activation patterns are formed from fewer granule cells that produce greater overlap in representation between safety and danger (inset B). Transition from danger to safety is delayed—signals from the hippocampus (HC) to shut off the HPA axis are not sent, glucocorticoids (GC) remain elevated, and symptoms of depression emerge. Cell Stem Cell 2011 9, DOI: ( /j.stem ) Copyright © 2011 Elsevier Inc. Terms and Conditions

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