Reference code: | PT/FB/BL-2016-030.11 |
Location: | BF-GMS
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Title:
| Distintic role of nucleus accumbens D2-MSN projections to ventral pallidum in different phases of motivated behavior
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Publication year: | 2022
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URL:
| https://www.sciencedirect.com/science/article/pii/S2211124722001012
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Abstract/Results: | The nucleus accumbens (NAc) is a key region in motivated behaviors. NAc medium spiny neurons (MSNs) are divided into those expressing dopamine receptor D1 or D2. Classically, D1- and D2-MSNs have been described as having opposing roles in reinforcement, but recent evidence suggests a more complex role for D2-MSNs. Here, we show that optogenetic modulation of D2-MSN to ventral pallidum (VP) projections during different stages of motivated behavior has contrasting effects in motivation. Activation of D2-MSN-VP projections during a reward-predicting cue results in increased motivational drive, whereas activation at reward delivery decreases motivation; optical inhibition triggers the opposite behavioral effect. In addition, in a free-choice instrumental task, animals prefer the lever that originates one pellet in opposition to pellet plus D2-MSN-VP optogenetic activation and vice versa for optogenetic inhibition. In summary, D2-MSN-VP projections play different, and even opposing, roles in distinct phases of motivated behavior.
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Accessibility: | Document exists in file
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Language:
| eng
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Author:
| Soares-Cunha, C.
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Secondary author(s):
| Domingues, A. V., Correia, R., Coimbra, B., Vieitas-Gaspar, N., Vasconcelos, N., Pinto, L., Sousa, N., Rodrigues, A. J.
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Document type:
| Article-d
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Number of reproductions:
| 1
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Reference:
| Soares-Cunha, C., Domingues, A. V., Correia, R., Coimbra, B., Vieitas-Gaspar, N., Vasconcelos, N., Pinto, L., Sousa, N. & Rodrigues, A. J. (2022). Distintic role of nucleus accumbens D2-MSN projections to ventral pallidum in different phases of motivated behavior. Cell Reports, 38, 7. https://doi.org/10.1016/j.celrep.2022.110380
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2-year Impact Factor: | 8.800|2022
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Times cited: | 30|2025-02-17
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Indexed document: | Yes
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Quartile: | Q1
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Keywords: | Nucleus accumbens / Ventral pallidum / Reward / Motivation / Medium spiny neurons / D2 / Striatum
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Distintic role of nucleus accumbens D2-MSN projections to ventral pallidum in different phases of motivated behavior |