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@ARTICLE{Strauch:163420,
author = {Strauch, Christina and Hoang, Thu-Huong and Angenstein,
Frank and Manahan-Vaughan, Denise},
title = {{O}lfactory {I}nformation {S}torage {E}ngages {S}ubcortical
and {C}ortical {B}rain {R}egions {T}hat {S}upport {V}alence
{D}etermination.},
journal = {Cerebral cortex},
volume = {32},
number = {4},
issn = {1460-2199},
address = {Oxford},
publisher = {Oxford Univ. Press},
reportid = {DZNE-2022-00180},
pages = {689 - 708},
year = {2022},
note = {(CC BY-NC)},
abstract = {The olfactory bulb (OB) delivers sensory information to the
piriform cortex (PC) and other components of the olfactory
system. OB-PC synapses have been reported to express
short-lasting forms of synaptic plasticity, whereas
long-term potentiation (LTP) of the anterior PC (aPC) occurs
predominantly by activating inputs from the prefrontal
cortex. This suggests that brain regions outside the
olfactory system may contribute to olfactory information
processing and storage. Here, we compared functional
magnetic resonance imaging BOLD responses triggered during
20 or 100 Hz stimulation of the OB. We detected BOLD signal
increases in the anterior olfactory nucleus (AON), PC and
entorhinal cortex, nucleus accumbens, dorsal striatum,
ventral diagonal band of Broca, prelimbic-infralimbic cortex
(PrL-IL), dorsal medial prefrontal cortex, and basolateral
amygdala. Significantly stronger BOLD responses occurred in
the PrL-IL, PC, and AON during 100 Hz compared with 20 Hz OB
stimulation. LTP in the aPC was concomitantly induced by 100
Hz stimulation. Furthermore, 100 Hz stimulation triggered
significant nuclear immediate early gene expression in aPC,
AON, and PrL-IL. The involvement of the PrL-IL in this
process is consistent with its putative involvement in
modulating behavioral responses to odor experience.
Furthermore, these results indicate that OB-mediated
information storage by the aPC is embedded in a connectome
that supports valence evaluation.},
keywords = {Information Storage and Retrieval / Neuronal Plasticity:
physiology / Olfactory Bulb: physiology / Piriform Cortex:
physiology / Smell: physiology / fMRI (Other) / immediate
early gene (Other) / olfactory system (Other) / prelimbic
cortex (Other) / synaptic plasticity (Other)},
cin = {AG Angenstein},
ddc = {610},
cid = {I:(DE-2719)1310004},
pnm = {351 - Brain Function (POF4-351)},
pid = {G:(DE-HGF)POF4-351},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:34379749},
pmc = {pmc:PMC8841565},
doi = {10.1093/cercor/bhab226},
url = {https://pub.dzne.de/record/163420},
}