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@ARTICLE{FroudistWalsh:897222,
author = {Froudist-Walsh, S. and Blliss, D. P. and Ding, X. and
Jankovic-Rapan, Lucija and Niu, Meiqi and Knoblauch, K. and
Zilles, Karl and Kennedy, H. and Palomero-Gallagher, Nicola
and Wang, X.-J.},
title = {{A} dopamine gradient controls access to distributed
working memory in large-scale monkey cortex},
journal = {Neuron},
volume = {109},
number = {21},
issn = {0896-6273},
address = {New York, NY},
publisher = {Elsevier},
reportid = {FZJ-2021-03684},
pages = {3500-3520.e13},
year = {2021},
abstract = {Dopamine is required for working memory, but how it
modulates the large-scale cortex is unknown. Here, we report
that dopamine receptor density per neuron, measured by
autoradiography, displays a macroscopic gradient along the
macaque cortical hierarchy. This gradient is incorporated in
a connectome-based large-scale cortex model endowed with
multiple neuron types. The model captures an inverted
U-shaped dependence of working memory on dopamine and
spatial patterns of persistent activity observed in over 90
experimental studies. Moreover, we show that dopamine is
crucial for filtering out irrelevant stimuli by enhancing
inhibition from dendrite-targeting interneurons. Our model
revealed that an activity-silent memory trace can be
realized by facilitation of inter-areal connections and that
adjusting cortical dopamine induces a switch from this
internal memory state to distributed persistent activity.
Our work represents a cross-level understanding from
molecules and cell types to recurrent circuit dynamics
underlying a core cognitive function distributed across the
primate cortex.},
cin = {INM-1},
ddc = {610},
cid = {I:(DE-Juel1)INM-1-20090406},
pnm = {5251 - Multilevel Brain Organization and Variability
(POF4-525) / HBP SGA3 - Human Brain Project Specific Grant
Agreement 3 (945539) / HBP SGA2 - Human Brain Project
Specific Grant Agreement 2 (785907)},
pid = {G:(DE-HGF)POF4-5251 / G:(EU-Grant)945539 /
G:(EU-Grant)785907},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:34536352},
UT = {WOS:000717490100003},
doi = {10.1016/j.neuron.2021.08.024},
url = {https://juser.fz-juelich.de/record/897222},
}