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@ARTICLE{Barnstedt:269033,
author = {Barnstedt, Oliver and Mocellin, Petra and Remy, Stefan},
title = {{A} hippocampus-accumbens code guides goal-directed
appetitive behavior.},
journal = {Nature Communications},
volume = {15},
number = {1},
issn = {2041-1723},
address = {[London]},
publisher = {Nature Publishing Group UK},
reportid = {DZNE-2024-00464},
pages = {3196},
year = {2024},
abstract = {The dorsal hippocampus (dHPC) is a key brain region for the
expression of spatial memories, such as navigating towards a
learned reward location. The nucleus accumbens (NAc) is a
prominent projection target of dHPC and implicated in
value-based action selection. Yet, the contents of the
dHPC→NAc information stream and their acute role in
behavior remain largely unknown. Here, we found that
optogenetic stimulation of the dHPC→NAc pathway while mice
navigated towards a learned reward location was both
necessary and sufficient for spatial memory-related
appetitive behaviors. To understand the task-relevant coding
properties of individual NAc-projecting hippocampal neurons
(dHPC→NAc), we used in vivo dual-color two-photon imaging.
In contrast to other dHPC neurons, the dHPC→NAc
subpopulation contained more place cells, with enriched
spatial tuning properties. This subpopulation also showed
enhanced coding of non-spatial task-relevant behaviors such
as deceleration and appetitive licking. A generalized linear
model revealed enhanced conjunctive coding in dHPC→NAc
neurons which improved the identification of the reward
zone. We propose that dHPC routes specific reward-related
spatial and behavioral state information to guide NAc action
selection.},
keywords = {Animals / Mice / Goals / Hippocampus / Appetitive Behavior
/ Spatial Memory / Phospholipid Ethers /
1,2-dihexadecyl-sn-glycero-3-phosphocholine (NLM Chemicals)
/ Phospholipid Ethers (NLM Chemicals)},
cin = {AG Remy},
ddc = {500},
cid = {I:(DE-2719)1013006},
pnm = {351 - Brain Function (POF4-351)},
pid = {G:(DE-HGF)POF4-351},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:38609363},
pmc = {pmc:PMC11015045},
doi = {10.1038/s41467-024-47361-x},
url = {https://pub.dzne.de/record/269033},
}