TY  - JOUR
N2  - The learning of stimulus-outcome associations allows for predictions about the environment. Ventral striatum and dopaminergic midbrain neurons form a larger network for generating reward prediction signals from sensory cues. Yet, the network plasticity mechanisms to generate predictive signals in these distributed circuits have not been entirely clarified. Also, direct evidence of the underlying interregional assembly formation and information transfer is still missing. Here we show that phasic dopamine is sufficient to reinforce the distinctness of stimulus representations in the ventral striatum even in the absence of reward. Upon such reinforcement, striatal stimulus encoding gives rise to interregional assemblies that drive dopaminergic neurons during stimulus-outcome learning. These assemblies dynamically encode the predicted reward value of conditioned stimuli. Together, our data reveal that ventral striatal and midbrain reward networks form a reinforcing loop to generate reward prediction coding.
PB  - NATURE PUBLISHING GROUP
A1  - Oettl, L-L
A1  - Scheller, M
A1  - Filosa, C
A1  - Wieland, S
A1  - Haag, F
A1  - Loeb, C
A1  - Durstewitz, D
A1  - Shusterman, R
A1  - Russo, E
A1  - Kelsch, W
VL  - 11
Y1  - 2020/07/10/
SN  - 2041-1723
N1  - This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
ID  - discovery10123650
AV  - public
JF  - Nature Communications
EP  - 14
UR  - https://doi.org/10.1038/s41467-020-17257-7
KW  - Science & Technology
KW  -  Multidisciplinary Sciences
KW  -  Science & Technology - Other Topics
KW  -  VENTRAL STRIATUM
KW  -  NEURONS
KW  -  REPRESENTATIONS
KW  -  UNCERTAINTY
KW  -  ACTIVATION
KW  -  SIGNALS
KW  -  MODELS
KW  -  ROLES
KW  -  PSYCHOSIS
KW  -  BEHAVIOR
TI  - Phasic dopamine reinforces distinct striatal stimulus encoding in the olfactory tubercle driving dopaminergic reward prediction
ER  -