Enhanced synaptic plasticity in newly generated granule cells of the adult hippocampus

Christoph Schmidt-Hieber, Peter Jonas and Josef Bischofberger ()
Additional contact information
Christoph Schmidt-Hieber: Physiologisches Institut der Universität Freiburg
Peter Jonas: Physiologisches Institut der Universität Freiburg
Josef Bischofberger: Physiologisches Institut der Universität Freiburg

Nature, 2004, vol. 429, issue 6988, 184-187

Abstract: Abstract Neural stem cells in various regions of the vertebrate brain continuously generate neurons throughout life1,2,3,4. In the mammalian hippocampus, a region important for spatial and episodic memory5,6, thousands of new granule cells are produced per day7, with the exact number depending on environmental conditions and physical exercise1,8. The survival of these neurons is improved by learning and conversely learning may be promoted by neurogenesis8,9,10. Although it has been suggested that newly generated neurons may have specific properties to facilitate learning2,10,11, the cellular and synaptic mechanisms of plasticity in these neurons are largely unknown. Here we show that young granule cells in the adult hippocampus differ substantially from mature granule cells in both active and passive membrane properties. In young neurons, T-type Ca2+ channels can generate isolated Ca2+ spikes and boost fast Na+ action potentials, contributing to the induction of synaptic plasticity. Associative long-term potentiation can be induced more easily in young neurons than in mature neurons under identical conditions. Thus, newly generated neurons express unique mechanisms to facilitate synaptic plasticity, which may be important for the formation of new memories.

Date: 2004
References: Add references at CitEc
Citations: View citations in EconPapers (6)

Downloads: (external link)
https://www.nature.com/articles/nature02553 Abstract (text/html)
Access to the full text of the articles in this series is restricted.

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:nature:v:429:y:2004:i:6988:d:10.1038_nature02553

Ordering information: This journal article can be ordered from
https://www.nature.com/

DOI: 10.1038/nature02553

Access Statistics for this article

Nature is currently edited by Magdalena Skipper

More articles in Nature from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().