A functional hypothesis for adult hippocampal neurogenesis: Avoidance of catastrophic interference in the dentate gyrus
Research output: Contribution to journal › Research article › Contributed › peer-review
Contributors
Abstract
The dentate gyrus is part of the hippocampal memory system and special in that it generates new neurons throughout life. Here we discuss the question of what the functional role of these new neurons might be. Our hypothesis is that they help the dentate gyrus to avoid the problem of catastrophic interference when adapting to new environments. We assume that old neurons are rather stable and preserve an optimal encoding learned for known environments while new neurons are plastic to adapt to those features that are qualitatively new in a new environment. A simple network simulation demonstrates that adding new plastic neurons is indeed a successful strategy for adaptation without catastrophic interference.
Details
Original language | English |
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Pages (from-to) | 329-343 |
Number of pages | 15 |
Journal | Hippocampus |
Volume | 16 |
Issue number | 3 |
Publication status | Published - 2006 |
Peer-reviewed | Yes |
External IDs
PubMed | 16435309 |
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ORCID | /0000-0002-5304-4061/work/161408186 |
Keywords
ASJC Scopus subject areas
Keywords
- Adaptation, Autoencoder network, Hippocampus, Network model