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Bergami, M.* ; Masserdotti, G. ; Temprana, S.G.* ; Motori, E.* ; Eriksson, T.M.* ; Göbel, J.* ; Yang, S.M.* ; Conzelmann, K.K.* ; Schinder, A.F.* ; Götz, M. ; Berninger, B.*

A critical period for experience-dependent remodeling of adult-born neuron connectivity.

Neuron 85, 710-717 (2015)
Verlagsversion DOI PMC
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Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
Neurogenesis in the dentate gyrus (DG) of the adult hippocampus is a process regulated by experience. To understand whether experience also modifies the connectivity of new neurons, we systematically investigated changes in their innervation following environmental enrichment (EE). We found that EE exposure between 2-6 weeks following neuron birth, rather than merely increasing the number of new neurons, profoundly affected their pattern of monosynaptic inputs. Both local innervation by interneurons and to even greater degree long-distance innervation by cortical neurons were markedly enhanced. Furthermore, following EE, new neurons received inputs from CA3 and CA1 inhibitory neurons that were rarely observed under control conditions. While EE-induced changes in inhibitory innervation were largely transient, cortical innervation remained increased after returning animals to control conditions. Our findings demonstrate an unprecedented experience-dependent reorganization of connections impinging onto adult-born neurons, which is likely to have important impact on their contribution to hippocampal information processing.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter Enhanced Synaptic Plasticity; Generated Granule Cells; Dentate Gyrus; Hippocampal Neurogenesis; Pattern Separation; Rabies Virus; Integration; Activation; Maturation; Behavior
Sprache englisch
Veröffentlichungsjahr 2015
HGF-Berichtsjahr 2015
ISSN (print) / ISBN 0896-6273
e-ISSN 1097-4199
Zeitschrift Neuron
Quellenangaben Band: 85, Heft: 4, Seiten: 710-717 Artikelnummer: , Supplement: ,
Verlag Cell Press
Verlagsort Cambridge, Mass.
Begutachtungsstatus Peer reviewed
Institut(e) Institute of Stem Cell Research (ISF)
POF Topic(s) 30204 - Cell Programming and Repair
Forschungsfeld(er) Stem Cell and Neuroscience
PSP-Element(e) G-500800-001
PubMed ID 25661179
DOI 10.1016/j.neuron.2015.01.001
WOS ID WOS:000349959900009
Scopus ID 84925389871
Scopus ID 84924074825
Erfassungsdatum 2015-02-12
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