Role of dopamine D2 receptors in optimizing choice strategy in a dynamic and uncertain environment.
Role of dopamine D2 receptors in optimizing choice strategy in a dynamic and uncertain environment.
复制标题
在动态和不确定的环境中,多巴胺D2受体在优化选择策略中的作用。
DOI:
10.3389/fnbeh.2014.00368
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发表时间:
2014
影响因子:
3
通讯作者:
Jung MW
中科院分区:
文献类型:
--
作者:
Kwak S;Huh N;Seo JS;Lee JE;Han PL;Jung MW
In order to investigate roles of dopamine receptor subtypes in reward-based learning, we examined choice behavior of dopamine D1 and D2 receptor-knockout (D1R-KO and D2R-KO, respectively) mice in an instrumental learning task with progressively increasing reversal frequency and a dynamic two-armed bandit task. Performance of D2R-KO mice was progressively impaired in the former as the frequency of reversal increased and profoundly impaired in the latter even with prolonged training, whereas D1R-KO mice showed relatively minor performance deficits. Choice behavior in the dynamic two-armed bandit task was well explained by a hybrid model including win-stay-lose-switch and reinforcement learning terms. A model-based analysis revealed increased win-stay, but impaired value updating and decreased value-dependent action selection in D2R-KO mice, which were detrimental to maximizing rewards in the dynamic two-armed bandit task. These results suggest an important role of dopamine D2 receptors in learning from past choice outcomes for rapid adjustment of choice behavior in a dynamic and uncertain environment.
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影响因子:
3.3
作者:
Desteno, D. A.;Schmauss, C.
通讯作者:
Schmauss, C.
影响因子:
64.8
作者:
Flagel SB;Clark JJ;Robinson TE;Mayo L;Czuj A;Willuhn I;Akers CA;Clinton SM;Phillips PE;Akil H
通讯作者:
Akil H
DOI:
10.1523/jneurosci.0363-11.2011
发表时间:
2011-05-18
期刊:
The Journal of neuroscience : the official journal of the Society for Neuroscience
影响因子:
--
作者:
Groman SM;Lee B;London ED;Mandelkern MA;James AS;Feiler K;Rivera R;Dahlbom M;Sossi V;Vandervoort E;Jentsch JD
通讯作者:
Jentsch JD
影响因子:
1.9
作者:
Herold, Christina
通讯作者:
Herold, Christina
影响因子:
5.3
作者:
Hart, Andrew S.;Rutledge, Robb B.;Phillips, Paul E. M.
通讯作者:
Phillips, Paul E. M.